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Finding the Fourth Proportional to 6,719.76, 10,079.70 and 2,770.08

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Solution

The fourth proportional to 6,719.76, 10,079.70 and 2,770.08 is: 4,155.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,719.76 : 10,079.70 = 2,770.08 : x
  2. Step 2: Convert to fraction form
    6,719.76/10,079.70 = 2,770.08/x
  3. Step 3: Cross multiply
    6,719.76x = 10,079.70 × 2,770.08
  4. Step 4: Simplify right side
    6,719.76x = 27,921,575.38
  5. Step 5: Solve for x
    x = 27,921,575.38/6,719.76
  6. Step 6: Final answer
    x = 4,155.14

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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.