Home / 3,612.31-5,419.14-1,147.30

Finding the Fourth Proportional to 3,612.31, 5,419.14 and 1,147.30

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Solution

The fourth proportional to 3,612.31, 5,419.14 and 1,147.30 is: 1,721.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,612.31 : 5,419.14 = 1,147.30 : x
  2. Step 2: Convert to fraction form
    3,612.31/5,419.14 = 1,147.30/x
  3. Step 3: Cross multiply
    3,612.31x = 5,419.14 × 1,147.30
  4. Step 4: Simplify right side
    3,612.31x = 6,217,379.32
  5. Step 5: Solve for x
    x = 6,217,379.32/3,612.31
  6. Step 6: Final answer
    x = 1,721.16

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.