Home / 5,166.49-7,131.05-2,929.70

Finding the Fourth Proportional to 5,166.49, 7,131.05 and 2,929.70

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Solution

The fourth proportional to 5,166.49, 7,131.05 and 2,929.70 is: 4,043.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,166.49 : 7,131.05 = 2,929.70 : x
  2. Step 2: Convert to fraction form
    5,166.49/7,131.05 = 2,929.70/x
  3. Step 3: Cross multiply
    5,166.49x = 7,131.05 × 2,929.70
  4. Step 4: Simplify right side
    5,166.49x = 20,891,824.61
  5. Step 5: Solve for x
    x = 20,891,824.61/5,166.49
  6. Step 6: Final answer
    x = 4,043.72

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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.