Home / 7,791.31-11,687.06-3,630.13

Finding the Fourth Proportional to 7,791.31, 11,687.06 and 3,630.13

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Solution

The fourth proportional to 7,791.31, 11,687.06 and 3,630.13 is: 5,445.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,791.31 : 11,687.06 = 3,630.13 : x
  2. Step 2: Convert to fraction form
    7,791.31/11,687.06 = 3,630.13/x
  3. Step 3: Cross multiply
    7,791.31x = 11,687.06 × 3,630.13
  4. Step 4: Simplify right side
    7,791.31x = 42,425,547.12
  5. Step 5: Solve for x
    x = 42,425,547.12/7,791.31
  6. Step 6: Final answer
    x = 5,445.24

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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.