Home / 2,254.05-3,108.65-1,811.79

Finding the Fourth Proportional to 2,254.05, 3,108.65 and 1,811.79

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Solution

The fourth proportional to 2,254.05, 3,108.65 and 1,811.79 is: 2,498.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,254.05 : 3,108.65 = 1,811.79 : x
  2. Step 2: Convert to fraction form
    2,254.05/3,108.65 = 1,811.79/x
  3. Step 3: Cross multiply
    2,254.05x = 3,108.65 × 1,811.79
  4. Step 4: Simplify right side
    2,254.05x = 5,632,211.92
  5. Step 5: Solve for x
    x = 5,632,211.92/2,254.05
  6. Step 6: Final answer
    x = 2,498.71

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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.