Home / 2,270.92-3,133.87-1,276.20

Finding the Fourth Proportional to 2,270.92, 3,133.87 and 1,276.20

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Solution

The fourth proportional to 2,270.92, 3,133.87 and 1,276.20 is: 1,761.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,270.92 : 3,133.87 = 1,276.20 : x
  2. Step 2: Convert to fraction form
    2,270.92/3,133.87 = 1,276.20/x
  3. Step 3: Cross multiply
    2,270.92x = 3,133.87 × 1,276.20
  4. Step 4: Simplify right side
    2,270.92x = 3,999,444.89
  5. Step 5: Solve for x
    x = 3,999,444.89/2,270.92
  6. Step 6: Final answer
    x = 1,761.16

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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.