Home / 2,331.78-3,510.43-2,127.66

Finding the Fourth Proportional to 2,331.78, 3,510.43 and 2,127.66

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Solution

The fourth proportional to 2,331.78, 3,510.43 and 2,127.66 is: 3,203.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,331.78 : 3,510.43 = 2,127.66 : x
  2. Step 2: Convert to fraction form
    2,331.78/3,510.43 = 2,127.66/x
  3. Step 3: Cross multiply
    2,331.78x = 3,510.43 × 2,127.66
  4. Step 4: Simplify right side
    2,331.78x = 7,468,983.94
  5. Step 5: Solve for x
    x = 7,468,983.94/2,331.78
  6. Step 6: Final answer
    x = 3,203.13

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.