Home / 2,254.24-3,110.85-1,259.71

Finding the Fourth Proportional to 2,254.24, 3,110.85 and 1,259.71

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Solution

The fourth proportional to 2,254.24, 3,110.85 and 1,259.71 is: 1,738.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,254.24 : 3,110.85 = 1,259.71 : x
  2. Step 2: Convert to fraction form
    2,254.24/3,110.85 = 1,259.71/x
  3. Step 3: Cross multiply
    2,254.24x = 3,110.85 × 1,259.71
  4. Step 4: Simplify right side
    2,254.24x = 3,918,768.85
  5. Step 5: Solve for x
    x = 3,918,768.85/2,254.24
  6. Step 6: Final answer
    x = 1,738.40

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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.