Home / 2,540.29-3,497.81-2,223.78

Finding the Fourth Proportional to 2,540.29, 3,497.81 and 2,223.78

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Solution

The fourth proportional to 2,540.29, 3,497.81 and 2,223.78 is: 3,062.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,540.29 : 3,497.81 = 2,223.78 : x
  2. Step 2: Convert to fraction form
    2,540.29/3,497.81 = 2,223.78/x
  3. Step 3: Cross multiply
    2,540.29x = 3,497.81 × 2,223.78
  4. Step 4: Simplify right side
    2,540.29x = 7,778,348.80
  5. Step 5: Solve for x
    x = 7,778,348.80/2,540.29
  6. Step 6: Final answer
    x = 3,062.00

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.