Home / 4,215.95-5,816.72-2,447.21

Finding the Fourth Proportional to 4,215.95, 5,816.72 and 2,447.21

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Solution

The fourth proportional to 4,215.95, 5,816.72 and 2,447.21 is: 3,376.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,215.95 : 5,816.72 = 2,447.21 : x
  2. Step 2: Convert to fraction form
    4,215.95/5,816.72 = 2,447.21/x
  3. Step 3: Cross multiply
    4,215.95x = 5,816.72 × 2,447.21
  4. Step 4: Simplify right side
    4,215.95x = 14,234,694.03
  5. Step 5: Solve for x
    x = 14,234,694.03/4,215.95
  6. Step 6: Final answer
    x = 3,376.39

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Half scale
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Double scale
Find fourth proportional to 4,216.95, 5,818.09 and 2,448.21
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.