Home / 2,270.14-3,132.86-1,275.45

Finding the Fourth Proportional to 2,270.14, 3,132.86 and 1,275.45

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Solution

The fourth proportional to 2,270.14, 3,132.86 and 1,275.45 is: 1,760.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,270.14 : 3,132.86 = 1,275.45 : x
  2. Step 2: Convert to fraction form
    2,270.14/3,132.86 = 1,275.45/x
  3. Step 3: Cross multiply
    2,270.14x = 3,132.86 × 1,275.45
  4. Step 4: Simplify right side
    2,270.14x = 3,995,806.29
  5. Step 5: Solve for x
    x = 3,995,806.29/2,270.14
  6. Step 6: Final answer
    x = 1,760.16

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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.