Home / 3,471.44-5,206.30-1,278.98

Finding the Fourth Proportional to 3,471.44, 5,206.30 and 1,278.98

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Solution

The fourth proportional to 3,471.44, 5,206.30 and 1,278.98 is: 1,918.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,471.44 : 5,206.30 = 1,278.98 : x
  2. Step 2: Convert to fraction form
    3,471.44/5,206.30 = 1,278.98/x
  3. Step 3: Cross multiply
    3,471.44x = 5,206.30 × 1,278.98
  4. Step 4: Simplify right side
    3,471.44x = 6,658,753.57
  5. Step 5: Solve for x
    x = 6,658,753.57/3,471.44
  6. Step 6: Final answer
    x = 1,918.15

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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.