Home / 4,591.92-6,887.76-1,129.20

Finding the Fourth Proportional to 4,591.92, 6,887.76 and 1,129.20

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Solution

The fourth proportional to 4,591.92, 6,887.76 and 1,129.20 is: 1,693.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,591.92 : 6,887.76 = 1,129.20 : x
  2. Step 2: Convert to fraction form
    4,591.92/6,887.76 = 1,129.20/x
  3. Step 3: Cross multiply
    4,591.92x = 6,887.76 × 1,129.20
  4. Step 4: Simplify right side
    4,591.92x = 7,777,658.59
  5. Step 5: Solve for x
    x = 7,777,658.59/4,591.92
  6. Step 6: Final answer
    x = 1,693.77

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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.