Home / 2,220.40-3,063.19-1,275.97

Finding the Fourth Proportional to 2,220.40, 3,063.19 and 1,275.97

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Solution

The fourth proportional to 2,220.40, 3,063.19 and 1,275.97 is: 1,760.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,220.40 : 3,063.19 = 1,275.97 : x
  2. Step 2: Convert to fraction form
    2,220.40/3,063.19 = 1,275.97/x
  3. Step 3: Cross multiply
    2,220.40x = 3,063.19 × 1,275.97
  4. Step 4: Simplify right side
    2,220.40x = 3,908,532.16
  5. Step 5: Solve for x
    x = 3,908,532.16/2,220.40
  6. Step 6: Final answer
    x = 1,760.29

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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.