Home / 2,275.55-3,407.85-1,298.69

Finding the Fourth Proportional to 2,275.55, 3,407.85 and 1,298.69

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Solution

The fourth proportional to 2,275.55, 3,407.85 and 1,298.69 is: 1,944.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,275.55 : 3,407.85 = 1,298.69 : x
  2. Step 2: Convert to fraction form
    2,275.55/3,407.85 = 1,298.69/x
  3. Step 3: Cross multiply
    2,275.55x = 3,407.85 × 1,298.69
  4. Step 4: Simplify right side
    2,275.55x = 4,425,723.68
  5. Step 5: Solve for x
    x = 4,425,723.68/2,275.55
  6. Step 6: Final answer
    x = 1,944.91

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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.