Home / 1,837.52-2,752.84-972.40

Finding the Fourth Proportional to 1,837.52, 2,752.84 and 972.40

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Solution

The fourth proportional to 1,837.52, 2,752.84 and 972.40 is: 1,456.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,837.52 : 2,752.84 = 972.40 : x
  2. Step 2: Convert to fraction form
    1,837.52/2,752.84 = 972.40/x
  3. Step 3: Cross multiply
    1,837.52x = 2,752.84 × 972.40
  4. Step 4: Simplify right side
    1,837.52x = 2,676,861.62
  5. Step 5: Solve for x
    x = 2,676,861.62/1,837.52
  6. Step 6: Final answer
    x = 1,456.78

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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.