Home / 2,812.11-4,217.95-1,587.18

Finding the Fourth Proportional to 2,812.11, 4,217.95 and 1,587.18

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Solution

The fourth proportional to 2,812.11, 4,217.95 and 1,587.18 is: 2,380.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,812.11 : 4,217.95 = 1,587.18 : x
  2. Step 2: Convert to fraction form
    2,812.11/4,217.95 = 1,587.18/x
  3. Step 3: Cross multiply
    2,812.11x = 4,217.95 × 1,587.18
  4. Step 4: Simplify right side
    2,812.11x = 6,694,645.88
  5. Step 5: Solve for x
    x = 6,694,645.88/2,812.11
  6. Step 6: Final answer
    x = 2,380.65

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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.