Home / 2,220.41-3,063.81-1,276.02

Finding the Fourth Proportional to 2,220.41, 3,063.81 and 1,276.02

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Solution

The fourth proportional to 2,220.41, 3,063.81 and 1,276.02 is: 1,760.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,220.41 : 3,063.81 = 1,276.02 : x
  2. Step 2: Convert to fraction form
    2,220.41/3,063.81 = 1,276.02/x
  3. Step 3: Cross multiply
    2,220.41x = 3,063.81 × 1,276.02
  4. Step 4: Simplify right side
    2,220.41x = 3,909,469.11
  5. Step 5: Solve for x
    x = 3,909,469.11/2,220.41
  6. Step 6: Final answer
    x = 1,760.70

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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.