Home / 3,147.46-4,341.80-1,951.70

Finding the Fourth Proportional to 3,147.46, 4,341.80 and 1,951.70

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Solution

The fourth proportional to 3,147.46, 4,341.80 and 1,951.70 is: 2,692.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,147.46 : 4,341.80 = 1,951.70 : x
  2. Step 2: Convert to fraction form
    3,147.46/4,341.80 = 1,951.70/x
  3. Step 3: Cross multiply
    3,147.46x = 4,341.80 × 1,951.70
  4. Step 4: Simplify right side
    3,147.46x = 8,473,874.23
  5. Step 5: Solve for x
    x = 8,473,874.23/3,147.46
  6. Step 6: Final answer
    x = 2,692.29

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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.