Home / 5,129.24-7,078.48-3,337.42

Finding the Fourth Proportional to 5,129.24, 7,078.48 and 3,337.42

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Solution

The fourth proportional to 5,129.24, 7,078.48 and 3,337.42 is: 4,605.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,129.24 : 7,078.48 = 3,337.42 : x
  2. Step 2: Convert to fraction form
    5,129.24/7,078.48 = 3,337.42/x
  3. Step 3: Cross multiply
    5,129.24x = 7,078.48 × 3,337.42
  4. Step 4: Simplify right side
    5,129.24x = 23,623,860.72
  5. Step 5: Solve for x
    x = 23,623,860.72/5,129.24
  6. Step 6: Final answer
    x = 4,605.72

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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.