Home / 2,149.60-3,206.55-2,077.61

Finding the Fourth Proportional to 2,149.60, 3,206.55 and 2,077.61

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Solution

The fourth proportional to 2,149.60, 3,206.55 and 2,077.61 is: 3,099.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,149.60 : 3,206.55 = 2,077.61 : x
  2. Step 2: Convert to fraction form
    2,149.60/3,206.55 = 2,077.61/x
  3. Step 3: Cross multiply
    2,149.60x = 3,206.55 × 2,077.61
  4. Step 4: Simplify right side
    2,149.60x = 6,661,949.96
  5. Step 5: Solve for x
    x = 6,661,949.96/2,149.60
  6. Step 6: Final answer
    x = 3,099.17

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.