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Finding the Fourth Proportional to 1,432.92, 1,977.32 and 901.88

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Solution

The fourth proportional to 1,432.92, 1,977.32 and 901.88 is: 1,244.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,432.92 : 1,977.32 = 901.88 : x
  2. Step 2: Convert to fraction form
    1,432.92/1,977.32 = 901.88/x
  3. Step 3: Cross multiply
    1,432.92x = 1,977.32 × 901.88
  4. Step 4: Simplify right side
    1,432.92x = 1,783,305.36
  5. Step 5: Solve for x
    x = 1,783,305.36/1,432.92
  6. Step 6: Final answer
    x = 1,244.53

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1.5x scale

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.