Home / 5,177.24-7,144.80-3,081.68

Finding the Fourth Proportional to 5,177.24, 7,144.80 and 3,081.68

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Solution

The fourth proportional to 5,177.24, 7,144.80 and 3,081.68 is: 4,252.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,177.24 : 7,144.80 = 3,081.68 : x
  2. Step 2: Convert to fraction form
    5,177.24/7,144.80 = 3,081.68/x
  3. Step 3: Cross multiply
    5,177.24x = 7,144.80 × 3,081.68
  4. Step 4: Simplify right side
    5,177.24x = 22,017,987.26
  5. Step 5: Solve for x
    x = 22,017,987.26/5,177.24
  6. Step 6: Final answer
    x = 4,252.84

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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.