Home / 2,384.62-3,577.92-1,287.70

Finding the Fourth Proportional to 2,384.62, 3,577.92 and 1,287.70

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Solution

The fourth proportional to 2,384.62, 3,577.92 and 1,287.70 is: 1,932.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,384.62 : 3,577.92 = 1,287.70 : x
  2. Step 2: Convert to fraction form
    2,384.62/3,577.92 = 1,287.70/x
  3. Step 3: Cross multiply
    2,384.62x = 3,577.92 × 1,287.70
  4. Step 4: Simplify right side
    2,384.62x = 4,607,287.58
  5. Step 5: Solve for x
    x = 4,607,287.58/2,384.62
  6. Step 6: Final answer
    x = 1,932.08

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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.