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Finding the Fourth Proportional to 6,295.68, 8,687.36 and 3,642.72

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Solution

The fourth proportional to 6,295.68, 8,687.36 and 3,642.72 is: 5,026.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,295.68 : 8,687.36 = 3,642.72 : x
  2. Step 2: Convert to fraction form
    6,295.68/8,687.36 = 3,642.72/x
  3. Step 3: Cross multiply
    6,295.68x = 8,687.36 × 3,642.72
  4. Step 4: Simplify right side
    6,295.68x = 31,645,620.02
  5. Step 5: Solve for x
    x = 31,645,620.02/6,295.68
  6. Step 6: Final answer
    x = 5,026.56

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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.