Home / 1,402.29-2,104.38-753.48

Finding the Fourth Proportional to 1,402.29, 2,104.38 and 753.48

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Solution

The fourth proportional to 1,402.29, 2,104.38 and 753.48 is: 1,130.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,402.29 : 2,104.38 = 753.48 : x
  2. Step 2: Convert to fraction form
    1,402.29/2,104.38 = 753.48/x
  3. Step 3: Cross multiply
    1,402.29x = 2,104.38 × 753.48
  4. Step 4: Simplify right side
    1,402.29x = 1,585,608.24
  5. Step 5: Solve for x
    x = 1,585,608.24/1,402.29
  6. Step 6: Final answer
    x = 1,130.73

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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.