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Finding the Fourth Proportional to 6,360.47, 8,778.69 and 3,842.99

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Solution

The fourth proportional to 6,360.47, 8,778.69 and 3,842.99 is: 5,304.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,360.47 : 8,778.69 = 3,842.99 : x
  2. Step 2: Convert to fraction form
    6,360.47/8,778.69 = 3,842.99/x
  3. Step 3: Cross multiply
    6,360.47x = 8,778.69 × 3,842.99
  4. Step 4: Simplify right side
    6,360.47x = 33,736,439.83
  5. Step 5: Solve for x
    x = 33,736,439.83/6,360.47
  6. Step 6: Final answer
    x = 5,304.08

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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.