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Finding the Fourth Proportional to 8,853.92, 13,280.80 and 2,280.08

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Solution

The fourth proportional to 8,853.92, 13,280.80 and 2,280.08 is: 3,420.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,853.92 : 13,280.80 = 2,280.08 : x
  2. Step 2: Convert to fraction form
    8,853.92/13,280.80 = 2,280.08/x
  3. Step 3: Cross multiply
    8,853.92x = 13,280.80 × 2,280.08
  4. Step 4: Simplify right side
    8,853.92x = 30,281,286.46
  5. Step 5: Solve for x
    x = 30,281,286.46/8,853.92
  6. Step 6: Final answer
    x = 3,420.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.