Home / 3,706.58-5,115.20-2,271.21

Finding the Fourth Proportional to 3,706.58, 5,115.20 and 2,271.21

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Solution

The fourth proportional to 3,706.58, 5,115.20 and 2,271.21 is: 3,134.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,706.58 : 5,115.20 = 2,271.21 : x
  2. Step 2: Convert to fraction form
    3,706.58/5,115.20 = 2,271.21/x
  3. Step 3: Cross multiply
    3,706.58x = 5,115.20 × 2,271.21
  4. Step 4: Simplify right side
    3,706.58x = 11,617,675.63
  5. Step 5: Solve for x
    x = 11,617,675.63/3,706.58
  6. Step 6: Final answer
    x = 3,134.34

Related Problems

Find fourth proportional to 1,853.29, 2,557.60 and 1,135.60
Half scale
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Double scale
Find fourth proportional to 3,707.58, 5,116.58 and 2,272.21
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.