Home / 7,100.91-9,799.68-3,914.20

Finding the Fourth Proportional to 7,100.91, 9,799.68 and 3,914.20

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Solution

The fourth proportional to 7,100.91, 9,799.68 and 3,914.20 is: 5,401.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,100.91 : 9,799.68 = 3,914.20 : x
  2. Step 2: Convert to fraction form
    7,100.91/9,799.68 = 3,914.20/x
  3. Step 3: Cross multiply
    7,100.91x = 9,799.68 × 3,914.20
  4. Step 4: Simplify right side
    7,100.91x = 38,357,934.38
  5. Step 5: Solve for x
    x = 38,357,934.38/7,100.91
  6. Step 6: Final answer
    x = 5,401.83

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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.