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Finding the Fourth Proportional to 7,660.80, 11,490.08 and 2,394.59

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Solution

The fourth proportional to 7,660.80, 11,490.08 and 2,394.59 is: 3,591.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,660.80 : 11,490.08 = 2,394.59 : x
  2. Step 2: Convert to fraction form
    7,660.80/11,490.08 = 2,394.59/x
  3. Step 3: Cross multiply
    7,660.80x = 11,490.08 × 2,394.59
  4. Step 4: Simplify right side
    7,660.80x = 27,513,961.24
  5. Step 5: Solve for x
    x = 27,513,961.24/7,660.80
  6. Step 6: Final answer
    x = 3,591.53

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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.