Home / 1,612.40-2,417.20-1,565.92

Finding the Fourth Proportional to 1,612.40, 2,417.20 and 1,565.92

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Solution

The fourth proportional to 1,612.40, 2,417.20 and 1,565.92 is: 2,347.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,612.40 : 2,417.20 = 1,565.92 : x
  2. Step 2: Convert to fraction form
    1,612.40/2,417.20 = 1,565.92/x
  3. Step 3: Cross multiply
    1,612.40x = 2,417.20 × 1,565.92
  4. Step 4: Simplify right side
    1,612.40x = 3,785,137.91
  5. Step 5: Solve for x
    x = 3,785,137.91/1,612.40
  6. Step 6: Final answer
    x = 2,347.52

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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.