Home / 2,270.23-3,132.70-1,275.32

Finding the Fourth Proportional to 2,270.23, 3,132.70 and 1,275.32

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Solution

The fourth proportional to 2,270.23, 3,132.70 and 1,275.32 is: 1,759.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,270.23 : 3,132.70 = 1,275.32 : x
  2. Step 2: Convert to fraction form
    2,270.23/3,132.70 = 1,275.32/x
  3. Step 3: Cross multiply
    2,270.23x = 3,132.70 × 1,275.32
  4. Step 4: Simplify right side
    2,270.23x = 3,995,194.96
  5. Step 5: Solve for x
    x = 3,995,194.96/2,270.23
  6. Step 6: Final answer
    x = 1,759.82

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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.