Home / 5,157.88-7,110.18-3,166.90

Finding the Fourth Proportional to 5,157.88, 7,110.18 and 3,166.90

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Solution

The fourth proportional to 5,157.88, 7,110.18 and 3,166.90 is: 4,365.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,157.88 : 7,110.18 = 3,166.90 : x
  2. Step 2: Convert to fraction form
    5,157.88/7,110.18 = 3,166.90/x
  3. Step 3: Cross multiply
    5,157.88x = 7,110.18 × 3,166.90
  4. Step 4: Simplify right side
    5,157.88x = 22,517,211.27
  5. Step 5: Solve for x
    x = 22,517,211.27/5,157.88
  6. Step 6: Final answer
    x = 4,365.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.