Home / 5,162.61-7,120.77-3,174.26

Finding the Fourth Proportional to 5,162.61, 7,120.77 and 3,174.26

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Solution

The fourth proportional to 5,162.61, 7,120.77 and 3,174.26 is: 4,378.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,162.61 : 7,120.77 = 3,174.26 : x
  2. Step 2: Convert to fraction form
    5,162.61/7,120.77 = 3,174.26/x
  3. Step 3: Cross multiply
    5,162.61x = 7,120.77 × 3,174.26
  4. Step 4: Simplify right side
    5,162.61x = 22,603,175.38
  5. Step 5: Solve for x
    x = 22,603,175.38/5,162.61
  6. Step 6: Final answer
    x = 4,378.25

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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.