Home / 1,423.28-2,122.35-1,372.52

Finding the Fourth Proportional to 1,423.28, 2,122.35 and 1,372.52

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Solution

The fourth proportional to 1,423.28, 2,122.35 and 1,372.52 is: 2,046.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,423.28 : 2,122.35 = 1,372.52 : x
  2. Step 2: Convert to fraction form
    1,423.28/2,122.35 = 1,372.52/x
  3. Step 3: Cross multiply
    1,423.28x = 2,122.35 × 1,372.52
  4. Step 4: Simplify right side
    1,423.28x = 2,912,962.36
  5. Step 5: Solve for x
    x = 2,912,962.36/1,423.28
  6. Step 6: Final answer
    x = 2,046.66

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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.