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Finding the Fourth Proportional to 2,819.10, 4,227.84 and 970.14

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Solution

The fourth proportional to 2,819.10, 4,227.84 and 970.14 is: 1,454.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,819.10 : 4,227.84 = 970.14 : x
  2. Step 2: Convert to fraction form
    2,819.10/4,227.84 = 970.14/x
  3. Step 3: Cross multiply
    2,819.10x = 4,227.84 × 970.14
  4. Step 4: Simplify right side
    2,819.10x = 4,101,596.70
  5. Step 5: Solve for x
    x = 4,101,596.70/2,819.10
  6. Step 6: Final answer
    x = 1,454.93

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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.