Home / 3,178.64-4,770.19-1,306.02

Finding the Fourth Proportional to 3,178.64, 4,770.19 and 1,306.02

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Solution

The fourth proportional to 3,178.64, 4,770.19 and 1,306.02 is: 1,959.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,178.64 : 4,770.19 = 1,306.02 : x
  2. Step 2: Convert to fraction form
    3,178.64/4,770.19 = 1,306.02/x
  3. Step 3: Cross multiply
    3,178.64x = 4,770.19 × 1,306.02
  4. Step 4: Simplify right side
    3,178.64x = 6,229,983.06
  5. Step 5: Solve for x
    x = 6,229,983.06/3,178.64
  6. Step 6: Final answer
    x = 1,959.95

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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.