Home / 5,445.83-8,171.45-2,158.85

Finding the Fourth Proportional to 5,445.83, 8,171.45 and 2,158.85

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Solution

The fourth proportional to 5,445.83, 8,171.45 and 2,158.85 is: 3,239.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,445.83 : 8,171.45 = 2,158.85 : x
  2. Step 2: Convert to fraction form
    5,445.83/8,171.45 = 2,158.85/x
  3. Step 3: Cross multiply
    5,445.83x = 8,171.45 × 2,158.85
  4. Step 4: Simplify right side
    5,445.83x = 17,640,883.18
  5. Step 5: Solve for x
    x = 17,640,883.18/5,445.83
  6. Step 6: Final answer
    x = 3,239.34

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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.