Home / 3,471.19-5,206.28-1,279.53

Finding the Fourth Proportional to 3,471.19, 5,206.28 and 1,279.53

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Solution

The fourth proportional to 3,471.19, 5,206.28 and 1,279.53 is: 1,919.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,471.19 : 5,206.28 = 1,279.53 : x
  2. Step 2: Convert to fraction form
    3,471.19/5,206.28 = 1,279.53/x
  3. Step 3: Cross multiply
    3,471.19x = 5,206.28 × 1,279.53
  4. Step 4: Simplify right side
    3,471.19x = 6,661,585.05
  5. Step 5: Solve for x
    x = 6,661,585.05/3,471.19
  6. Step 6: Final answer
    x = 1,919.11

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.