Home / 3,723.60-5,585.28-1,126.56

Finding the Fourth Proportional to 3,723.60, 5,585.28 and 1,126.56

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Solution

The fourth proportional to 3,723.60, 5,585.28 and 1,126.56 is: 1,689.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,723.60 : 5,585.28 = 1,126.56 : x
  2. Step 2: Convert to fraction form
    3,723.60/5,585.28 = 1,126.56/x
  3. Step 3: Cross multiply
    3,723.60x = 5,585.28 × 1,126.56
  4. Step 4: Simplify right side
    3,723.60x = 6,292,153.04
  5. Step 5: Solve for x
    x = 6,292,153.04/3,723.60
  6. Step 6: Final answer
    x = 1,689.80

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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.