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Finding the Fourth Proportional to 6,287.88, 8,674.92 and 3,925.92

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Solution

The fourth proportional to 6,287.88, 8,674.92 and 3,925.92 is: 5,416.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,287.88 : 8,674.92 = 3,925.92 : x
  2. Step 2: Convert to fraction form
    6,287.88/8,674.92 = 3,925.92/x
  3. Step 3: Cross multiply
    6,287.88x = 8,674.92 × 3,925.92
  4. Step 4: Simplify right side
    6,287.88x = 34,057,041.93
  5. Step 5: Solve for x
    x = 34,057,041.93/6,287.88
  6. Step 6: Final answer
    x = 5,416.30

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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.