Home / 5,447.70-8,171.55-4,842.90

Finding the Fourth Proportional to 5,447.70, 8,171.55 and 4,842.90

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Solution

The fourth proportional to 5,447.70, 8,171.55 and 4,842.90 is: 7,264.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,447.70 : 8,171.55 = 4,842.90 : x
  2. Step 2: Convert to fraction form
    5,447.70/8,171.55 = 4,842.90/x
  3. Step 3: Cross multiply
    5,447.70x = 8,171.55 × 4,842.90
  4. Step 4: Simplify right side
    5,447.70x = 39,573,999.50
  5. Step 5: Solve for x
    x = 39,573,999.50/5,447.70
  6. Step 6: Final answer
    x = 7,264.35

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Similar ratio
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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.