Home / 7,877.31-11,808.66-2,943.20

Finding the Fourth Proportional to 7,877.31, 11,808.66 and 2,943.20

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Solution

The fourth proportional to 7,877.31, 11,808.66 and 2,943.20 is: 4,412.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,877.31 : 11,808.66 = 2,943.20 : x
  2. Step 2: Convert to fraction form
    7,877.31/11,808.66 = 2,943.20/x
  3. Step 3: Cross multiply
    7,877.31x = 11,808.66 × 2,943.20
  4. Step 4: Simplify right side
    7,877.31x = 34,755,200.11
  5. Step 5: Solve for x
    x = 34,755,200.11/7,877.31
  6. Step 6: Final answer
    x = 4,412.06

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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.