Home / 7,116.19-9,819.59-4,131.44

Finding the Fourth Proportional to 7,116.19, 9,819.59 and 4,131.44

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Solution

The fourth proportional to 7,116.19, 9,819.59 and 4,131.44 is: 5,700.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,116.19 : 9,819.59 = 4,131.44 : x
  2. Step 2: Convert to fraction form
    7,116.19/9,819.59 = 4,131.44/x
  3. Step 3: Cross multiply
    7,116.19x = 9,819.59 × 4,131.44
  4. Step 4: Simplify right side
    7,116.19x = 40,569,029.47
  5. Step 5: Solve for x
    x = 40,569,029.47/7,116.19
  6. Step 6: Final answer
    x = 5,700.95

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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.