Home / 2,254.20-3,110.95-1,259.49

Finding the Fourth Proportional to 2,254.20, 3,110.95 and 1,259.49

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Solution

The fourth proportional to 2,254.20, 3,110.95 and 1,259.49 is: 1,738.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,254.20 : 3,110.95 = 1,259.49 : x
  2. Step 2: Convert to fraction form
    2,254.20/3,110.95 = 1,259.49/x
  3. Step 3: Cross multiply
    2,254.20x = 3,110.95 × 1,259.49
  4. Step 4: Simplify right side
    2,254.20x = 3,918,202.61
  5. Step 5: Solve for x
    x = 3,918,202.61/2,254.20
  6. Step 6: Final answer
    x = 1,738.18

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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.