Home / 2,073.33-3,110.49-686.70

Finding the Fourth Proportional to 2,073.33, 3,110.49 and 686.70

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Solution

The fourth proportional to 2,073.33, 3,110.49 and 686.70 is: 1,030.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,073.33 : 3,110.49 = 686.70 : x
  2. Step 2: Convert to fraction form
    2,073.33/3,110.49 = 686.70/x
  3. Step 3: Cross multiply
    2,073.33x = 3,110.49 × 686.70
  4. Step 4: Simplify right side
    2,073.33x = 2,135,973.48
  5. Step 5: Solve for x
    x = 2,135,973.48/2,073.33
  6. Step 6: Final answer
    x = 1,030.21

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.