Home / 7,877.79-11,818.99-2,331.29

Finding the Fourth Proportional to 7,877.79, 11,818.99 and 2,331.29

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Solution

The fourth proportional to 7,877.79, 11,818.99 and 2,331.29 is: 3,497.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,877.79 : 11,818.99 = 2,331.29 : x
  2. Step 2: Convert to fraction form
    7,877.79/11,818.99 = 2,331.29/x
  3. Step 3: Cross multiply
    7,877.79x = 11,818.99 × 2,331.29
  4. Step 4: Simplify right side
    7,877.79x = 27,553,428.27
  5. Step 5: Solve for x
    x = 27,553,428.27/7,877.79
  6. Step 6: Final answer
    x = 3,497.61

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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.