Home / 7,157.27-9,879.72-4,174.04

Finding the Fourth Proportional to 7,157.27, 9,879.72 and 4,174.04

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Solution

The fourth proportional to 7,157.27, 9,879.72 and 4,174.04 is: 5,761.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,157.27 : 9,879.72 = 4,174.04 : x
  2. Step 2: Convert to fraction form
    7,157.27/9,879.72 = 4,174.04/x
  3. Step 3: Cross multiply
    7,157.27x = 9,879.72 × 4,174.04
  4. Step 4: Simplify right side
    7,157.27x = 41,238,346.47
  5. Step 5: Solve for x
    x = 41,238,346.47/7,157.27
  6. Step 6: Final answer
    x = 5,761.74

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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.