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Finding the Fourth Proportional to 6,342.09, 8,752.42 and 3,984.99

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Solution

The fourth proportional to 6,342.09, 8,752.42 and 3,984.99 is: 5,499.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,342.09 : 8,752.42 = 3,984.99 : x
  2. Step 2: Convert to fraction form
    6,342.09/8,752.42 = 3,984.99/x
  3. Step 3: Cross multiply
    6,342.09x = 8,752.42 × 3,984.99
  4. Step 4: Simplify right side
    6,342.09x = 34,878,306.18
  5. Step 5: Solve for x
    x = 34,878,306.18/6,342.09
  6. Step 6: Final answer
    x = 5,499.50

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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.