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Finding the Fourth Proportional to 1,337.76, 1,832.76 and 1,285.92

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Solution

The fourth proportional to 1,337.76, 1,832.76 and 1,285.92 is: 1,761.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,337.76 : 1,832.76 = 1,285.92 : x
  2. Step 2: Convert to fraction form
    1,337.76/1,832.76 = 1,285.92/x
  3. Step 3: Cross multiply
    1,337.76x = 1,832.76 × 1,285.92
  4. Step 4: Simplify right side
    1,337.76x = 2,356,782.74
  5. Step 5: Solve for x
    x = 2,356,782.74/1,337.76
  6. Step 6: Final answer
    x = 1,761.74

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.