Home / 2,240.60-3,345.57-1,912.55

Finding the Fourth Proportional to 2,240.60, 3,345.57 and 1,912.55

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Solution

The fourth proportional to 2,240.60, 3,345.57 and 1,912.55 is: 2,855.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,240.60 : 3,345.57 = 1,912.55 : x
  2. Step 2: Convert to fraction form
    2,240.60/3,345.57 = 1,912.55/x
  3. Step 3: Cross multiply
    2,240.60x = 3,345.57 × 1,912.55
  4. Step 4: Simplify right side
    2,240.60x = 6,398,553.18
  5. Step 5: Solve for x
    x = 6,398,553.18/2,240.60
  6. Step 6: Final answer
    x = 2,855.74

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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.