Home / 5,385.90-8,077.29-2,098.22

Finding the Fourth Proportional to 5,385.90, 8,077.29 and 2,098.22

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Solution

The fourth proportional to 5,385.90, 8,077.29 and 2,098.22 is: 3,146.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,385.90 : 8,077.29 = 2,098.22 : x
  2. Step 2: Convert to fraction form
    5,385.90/8,077.29 = 2,098.22/x
  3. Step 3: Cross multiply
    5,385.90x = 8,077.29 × 2,098.22
  4. Step 4: Simplify right side
    5,385.90x = 16,947,883.17
  5. Step 5: Solve for x
    x = 16,947,883.17/5,385.90
  6. Step 6: Final answer
    x = 3,146.71

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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.