Home / 1,488.48-2,217.76-1,432.64

Finding the Fourth Proportional to 1,488.48, 2,217.76 and 1,432.64

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Solution

The fourth proportional to 1,488.48, 2,217.76 and 1,432.64 is: 2,134.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,488.48 : 2,217.76 = 1,432.64 : x
  2. Step 2: Convert to fraction form
    1,488.48/2,217.76 = 1,432.64/x
  3. Step 3: Cross multiply
    1,488.48x = 2,217.76 × 1,432.64
  4. Step 4: Simplify right side
    1,488.48x = 3,177,251.69
  5. Step 5: Solve for x
    x = 3,177,251.69/1,488.48
  6. Step 6: Final answer
    x = 2,134.56

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.