Home / 3,501.92-5,253.41-1,280.87

Finding the Fourth Proportional to 3,501.92, 5,253.41 and 1,280.87

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Solution

The fourth proportional to 3,501.92, 5,253.41 and 1,280.87 is: 1,921.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,501.92 : 5,253.41 = 1,280.87 : x
  2. Step 2: Convert to fraction form
    3,501.92/5,253.41 = 1,280.87/x
  3. Step 3: Cross multiply
    3,501.92x = 5,253.41 × 1,280.87
  4. Step 4: Simplify right side
    3,501.92x = 6,728,935.27
  5. Step 5: Solve for x
    x = 6,728,935.27/3,501.92
  6. Step 6: Final answer
    x = 1,921.50

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Half scale
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Double scale
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Similar ratio
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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.