Home / 1,615.46-2,227.92-1,241.78

Finding the Fourth Proportional to 1,615.46, 2,227.92 and 1,241.78

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Solution

The fourth proportional to 1,615.46, 2,227.92 and 1,241.78 is: 1,712.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,615.46 : 2,227.92 = 1,241.78 : x
  2. Step 2: Convert to fraction form
    1,615.46/2,227.92 = 1,241.78/x
  3. Step 3: Cross multiply
    1,615.46x = 2,227.92 × 1,241.78
  4. Step 4: Simplify right side
    1,615.46x = 2,766,586.50
  5. Step 5: Solve for x
    x = 2,766,586.50/1,615.46
  6. Step 6: Final answer
    x = 1,712.57

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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.