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Finding the Fourth Proportional to 6,378.36, 8,799.18 and 3,725.88

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Solution

The fourth proportional to 6,378.36, 8,799.18 and 3,725.88 is: 5,139.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,378.36 : 8,799.18 = 3,725.88 : x
  2. Step 2: Convert to fraction form
    6,378.36/8,799.18 = 3,725.88/x
  3. Step 3: Cross multiply
    6,378.36x = 8,799.18 × 3,725.88
  4. Step 4: Simplify right side
    6,378.36x = 32,784,688.78
  5. Step 5: Solve for x
    x = 32,784,688.78/6,378.36
  6. Step 6: Final answer
    x = 5,139.99

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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.