Home / 5,157.12-7,110.72-3,365.76

Finding the Fourth Proportional to 5,157.12, 7,110.72 and 3,365.76

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Solution

The fourth proportional to 5,157.12, 7,110.72 and 3,365.76 is: 4,640.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,157.12 : 7,110.72 = 3,365.76 : x
  2. Step 2: Convert to fraction form
    5,157.12/7,110.72 = 3,365.76/x
  3. Step 3: Cross multiply
    5,157.12x = 7,110.72 × 3,365.76
  4. Step 4: Simplify right side
    5,157.12x = 23,932,976.95
  5. Step 5: Solve for x
    x = 23,932,976.95/5,157.12
  6. Step 6: Final answer
    x = 4,640.76

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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.