Home / 1,432.02-1,979.85-1,101.54

Finding the Fourth Proportional to 1,432.02, 1,979.85 and 1,101.54

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Solution

The fourth proportional to 1,432.02, 1,979.85 and 1,101.54 is: 1,522.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,432.02 : 1,979.85 = 1,101.54 : x
  2. Step 2: Convert to fraction form
    1,432.02/1,979.85 = 1,101.54/x
  3. Step 3: Cross multiply
    1,432.02x = 1,979.85 × 1,101.54
  4. Step 4: Simplify right side
    1,432.02x = 2,180,883.97
  5. Step 5: Solve for x
    x = 2,180,883.97/1,432.02
  6. Step 6: Final answer
    x = 1,522.94

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.