Home / 1,324.13-1,985.79-630.11

Finding the Fourth Proportional to 1,324.13, 1,985.79 and 630.11

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Solution

The fourth proportional to 1,324.13, 1,985.79 and 630.11 is: 944.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,324.13 : 1,985.79 = 630.11 : x
  2. Step 2: Convert to fraction form
    1,324.13/1,985.79 = 630.11/x
  3. Step 3: Cross multiply
    1,324.13x = 1,985.79 × 630.11
  4. Step 4: Simplify right side
    1,324.13x = 1,251,266.14
  5. Step 5: Solve for x
    x = 1,251,266.14/1,324.13
  6. Step 6: Final answer
    x = 944.97

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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.