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Finding the Fourth Proportional to 7,854.04, 11,781.06 and 3,691.45

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Solution

The fourth proportional to 7,854.04, 11,781.06 and 3,691.45 is: 5,537.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,854.04 : 11,781.06 = 3,691.45 : x
  2. Step 2: Convert to fraction form
    7,854.04/11,781.06 = 3,691.45/x
  3. Step 3: Cross multiply
    7,854.04x = 11,781.06 × 3,691.45
  4. Step 4: Simplify right side
    7,854.04x = 43,489,193.94
  5. Step 5: Solve for x
    x = 43,489,193.94/7,854.04
  6. Step 6: Final answer
    x = 5,537.18

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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.