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Finding the Fourth Proportional to 6,364.68, 8,781.26 and 3,675.55

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Solution

The fourth proportional to 6,364.68, 8,781.26 and 3,675.55 is: 5,071.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,364.68 : 8,781.26 = 3,675.55 : x
  2. Step 2: Convert to fraction form
    6,364.68/8,781.26 = 3,675.55/x
  3. Step 3: Cross multiply
    6,364.68x = 8,781.26 × 3,675.55
  4. Step 4: Simplify right side
    6,364.68x = 32,275,969.38
  5. Step 5: Solve for x
    x = 32,275,969.38/6,364.68
  6. Step 6: Final answer
    x = 5,071.11

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.