Home / 1,553.11-2,328.13-1,113.32

Finding the Fourth Proportional to 1,553.11, 2,328.13 and 1,113.32

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Solution

The fourth proportional to 1,553.11, 2,328.13 and 1,113.32 is: 1,668.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,553.11 : 2,328.13 = 1,113.32 : x
  2. Step 2: Convert to fraction form
    1,553.11/2,328.13 = 1,113.32/x
  3. Step 3: Cross multiply
    1,553.11x = 2,328.13 × 1,113.32
  4. Step 4: Simplify right side
    1,553.11x = 2,591,952.79
  5. Step 5: Solve for x
    x = 2,591,952.79/1,553.11
  6. Step 6: Final answer
    x = 1,668.88

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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.