Home / 4,211.97-6,319.17-1,290.71

Finding the Fourth Proportional to 4,211.97, 6,319.17 and 1,290.71

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Solution

The fourth proportional to 4,211.97, 6,319.17 and 1,290.71 is: 1,936.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,211.97 : 6,319.17 = 1,290.71 : x
  2. Step 2: Convert to fraction form
    4,211.97/6,319.17 = 1,290.71/x
  3. Step 3: Cross multiply
    4,211.97x = 6,319.17 × 1,290.71
  4. Step 4: Simplify right side
    4,211.97x = 8,156,184.31
  5. Step 5: Solve for x
    x = 8,156,184.31/4,211.97
  6. Step 6: Final answer
    x = 1,936.43

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1.5x scale

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.