Home / 3,722.80-5,585.57-1,531.70

Finding the Fourth Proportional to 3,722.80, 5,585.57 and 1,531.70

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Solution

The fourth proportional to 3,722.80, 5,585.57 and 1,531.70 is: 2,298.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,722.80 : 5,585.57 = 1,531.70 : x
  2. Step 2: Convert to fraction form
    3,722.80/5,585.57 = 1,531.70/x
  3. Step 3: Cross multiply
    3,722.80x = 5,585.57 × 1,531.70
  4. Step 4: Simplify right side
    3,722.80x = 8,555,409.91
  5. Step 5: Solve for x
    x = 8,555,409.91/3,722.80
  6. Step 6: Final answer
    x = 2,298.11

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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.