Home / 2,489.16-3,730.32-1,257.39

Finding the Fourth Proportional to 2,489.16, 3,730.32 and 1,257.39

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Solution

The fourth proportional to 2,489.16, 3,730.32 and 1,257.39 is: 1,884.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,489.16 : 3,730.32 = 1,257.39 : x
  2. Step 2: Convert to fraction form
    2,489.16/3,730.32 = 1,257.39/x
  3. Step 3: Cross multiply
    2,489.16x = 3,730.32 × 1,257.39
  4. Step 4: Simplify right side
    2,489.16x = 4,690,467.06
  5. Step 5: Solve for x
    x = 4,690,467.06/2,489.16
  6. Step 6: Final answer
    x = 1,884.35

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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.