Home / 1,731.24-2,596.82-432.72

Finding the Fourth Proportional to 1,731.24, 2,596.82 and 432.72

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Solution

The fourth proportional to 1,731.24, 2,596.82 and 432.72 is: 649.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,731.24 : 2,596.82 = 432.72 : x
  2. Step 2: Convert to fraction form
    1,731.24/2,596.82 = 432.72/x
  3. Step 3: Cross multiply
    1,731.24x = 2,596.82 × 432.72
  4. Step 4: Simplify right side
    1,731.24x = 1,123,693.79
  5. Step 5: Solve for x
    x = 1,123,693.79/1,731.24
  6. Step 6: Final answer
    x = 649.07

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1.5x scale

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.