Home / 5,515.23-7,611.19-3,158.13

Finding the Fourth Proportional to 5,515.23, 7,611.19 and 3,158.13

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Solution

The fourth proportional to 5,515.23, 7,611.19 and 3,158.13 is: 4,358.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,515.23 : 7,611.19 = 3,158.13 : x
  2. Step 2: Convert to fraction form
    5,515.23/7,611.19 = 3,158.13/x
  3. Step 3: Cross multiply
    5,515.23x = 7,611.19 × 3,158.13
  4. Step 4: Simplify right side
    5,515.23x = 24,037,119.58
  5. Step 5: Solve for x
    x = 24,037,119.58/5,515.23
  6. Step 6: Final answer
    x = 4,358.32

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Half scale
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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.