Home / 3,120.36-4,306.14-1,723.14

Finding the Fourth Proportional to 3,120.36, 4,306.14 and 1,723.14

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Solution

The fourth proportional to 3,120.36, 4,306.14 and 1,723.14 is: 2,377.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,120.36 : 4,306.14 = 1,723.14 : x
  2. Step 2: Convert to fraction form
    3,120.36/4,306.14 = 1,723.14/x
  3. Step 3: Cross multiply
    3,120.36x = 4,306.14 × 1,723.14
  4. Step 4: Simplify right side
    3,120.36x = 7,420,082.08
  5. Step 5: Solve for x
    x = 7,420,082.08/3,120.36
  6. Step 6: Final answer
    x = 2,377.96

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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.