Home / 3,742.52-5,612.05-1,400.79

Finding the Fourth Proportional to 3,742.52, 5,612.05 and 1,400.79

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Solution

The fourth proportional to 3,742.52, 5,612.05 and 1,400.79 is: 2,100.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,742.52 : 5,612.05 = 1,400.79 : x
  2. Step 2: Convert to fraction form
    3,742.52/5,612.05 = 1,400.79/x
  3. Step 3: Cross multiply
    3,742.52x = 5,612.05 × 1,400.79
  4. Step 4: Simplify right side
    3,742.52x = 7,861,296.52
  5. Step 5: Solve for x
    x = 7,861,296.52/3,742.52
  6. Step 6: Final answer
    x = 2,100.54

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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.