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Finding the Fourth Proportional to 7,902.92, 11,854.84 and 2,972.60

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Solution

The fourth proportional to 7,902.92, 11,854.84 and 2,972.60 is: 4,459.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,902.92 : 11,854.84 = 2,972.60 : x
  2. Step 2: Convert to fraction form
    7,902.92/11,854.84 = 2,972.60/x
  3. Step 3: Cross multiply
    7,902.92x = 11,854.84 × 2,972.60
  4. Step 4: Simplify right side
    7,902.92x = 35,239,719.59
  5. Step 5: Solve for x
    x = 35,239,719.59/7,902.92
  6. Step 6: Final answer
    x = 4,459.07

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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.