Home / 2,270.10-3,132.68-1,275.62

Finding the Fourth Proportional to 2,270.10, 3,132.68 and 1,275.62

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Solution

The fourth proportional to 2,270.10, 3,132.68 and 1,275.62 is: 1,760.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,270.10 : 3,132.68 = 1,275.62 : x
  2. Step 2: Convert to fraction form
    2,270.10/3,132.68 = 1,275.62/x
  3. Step 3: Cross multiply
    2,270.10x = 3,132.68 × 1,275.62
  4. Step 4: Simplify right side
    2,270.10x = 3,996,109.26
  5. Step 5: Solve for x
    x = 3,996,109.26/2,270.10
  6. Step 6: Final answer
    x = 1,760.32

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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.