Home / 5,387.40-8,077.79-2,096.66

Finding the Fourth Proportional to 5,387.40, 8,077.79 and 2,096.66

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Solution

The fourth proportional to 5,387.40, 8,077.79 and 2,096.66 is: 3,143.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,387.40 : 8,077.79 = 2,096.66 : x
  2. Step 2: Convert to fraction form
    5,387.40/8,077.79 = 2,096.66/x
  3. Step 3: Cross multiply
    5,387.40x = 8,077.79 × 2,096.66
  4. Step 4: Simplify right side
    5,387.40x = 16,936,379.18
  5. Step 5: Solve for x
    x = 16,936,379.18/5,387.40
  6. Step 6: Final answer
    x = 3,143.70

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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.