Home / 2,270.16-3,133.41-1,275.76

Finding the Fourth Proportional to 2,270.16, 3,133.41 and 1,275.76

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Solution

The fourth proportional to 2,270.16, 3,133.41 and 1,275.76 is: 1,760.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,270.16 : 3,133.41 = 1,275.76 : x
  2. Step 2: Convert to fraction form
    2,270.16/3,133.41 = 1,275.76/x
  3. Step 3: Cross multiply
    2,270.16x = 3,133.41 × 1,275.76
  4. Step 4: Simplify right side
    2,270.16x = 3,997,463.47
  5. Step 5: Solve for x
    x = 3,997,463.47/2,270.16
  6. Step 6: Final answer
    x = 1,760.87

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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.