Home / 2,270.79-3,133.75-1,276.16

Finding the Fourth Proportional to 2,270.79, 3,133.75 and 1,276.16

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Solution

The fourth proportional to 2,270.79, 3,133.75 and 1,276.16 is: 1,761.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,270.79 : 3,133.75 = 1,276.16 : x
  2. Step 2: Convert to fraction form
    2,270.79/3,133.75 = 1,276.16/x
  3. Step 3: Cross multiply
    2,270.79x = 3,133.75 × 1,276.16
  4. Step 4: Simplify right side
    2,270.79x = 3,999,147.54
  5. Step 5: Solve for x
    x = 3,999,147.54/2,270.79
  6. Step 6: Final answer
    x = 1,761.13

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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.