Home / 5,017.26-6,925.94-3,129.78

Finding the Fourth Proportional to 5,017.26, 6,925.94 and 3,129.78

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Solution

The fourth proportional to 5,017.26, 6,925.94 and 3,129.78 is: 4,320.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,017.26 : 6,925.94 = 3,129.78 : x
  2. Step 2: Convert to fraction form
    5,017.26/6,925.94 = 3,129.78/x
  3. Step 3: Cross multiply
    5,017.26x = 6,925.94 × 3,129.78
  4. Step 4: Simplify right side
    5,017.26x = 21,676,668.49
  5. Step 5: Solve for x
    x = 21,676,668.49/5,017.26
  6. Step 6: Final answer
    x = 4,320.42

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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.