Home / 10,770.60-16,155.84-2,979.40

Finding the Fourth Proportional to 10,770.60, 16,155.84 and 2,979.40

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Solution

The fourth proportional to 10,770.60, 16,155.84 and 2,979.40 is: 4,469.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,770.60 : 16,155.84 = 2,979.40 : x
  2. Step 2: Convert to fraction form
    10,770.60/16,155.84 = 2,979.40/x
  3. Step 3: Cross multiply
    10,770.60x = 16,155.84 × 2,979.40
  4. Step 4: Simplify right side
    10,770.60x = 48,134,709.70
  5. Step 5: Solve for x
    x = 48,134,709.70/10,770.60
  6. Step 6: Final answer
    x = 4,469.08

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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.