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Finding the Fourth Proportional to 6,079.60, 9,117.60 and 2,379.70

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Solution

The fourth proportional to 6,079.60, 9,117.60 and 2,379.70 is: 3,568.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,079.60 : 9,117.60 = 2,379.70 : x
  2. Step 2: Convert to fraction form
    6,079.60/9,117.60 = 2,379.70/x
  3. Step 3: Cross multiply
    6,079.60x = 9,117.60 × 2,379.70
  4. Step 4: Simplify right side
    6,079.60x = 21,697,152.72
  5. Step 5: Solve for x
    x = 21,697,152.72/6,079.60
  6. Step 6: Final answer
    x = 3,568.85

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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.