Home / 2,612.38-3,918.62-1,224.95

Finding the Fourth Proportional to 2,612.38, 3,918.62 and 1,224.95

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Solution

The fourth proportional to 2,612.38, 3,918.62 and 1,224.95 is: 1,837.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,612.38 : 3,918.62 = 1,224.95 : x
  2. Step 2: Convert to fraction form
    2,612.38/3,918.62 = 1,224.95/x
  3. Step 3: Cross multiply
    2,612.38x = 3,918.62 × 1,224.95
  4. Step 4: Simplify right side
    2,612.38x = 4,800,113.57
  5. Step 5: Solve for x
    x = 4,800,113.57/2,612.38
  6. Step 6: Final answer
    x = 1,837.45

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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.