Home / 2,202.59-3,039.49-1,207.87

Finding the Fourth Proportional to 2,202.59, 3,039.49 and 1,207.87

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Solution

The fourth proportional to 2,202.59, 3,039.49 and 1,207.87 is: 1,666.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,202.59 : 3,039.49 = 1,207.87 : x
  2. Step 2: Convert to fraction form
    2,202.59/3,039.49 = 1,207.87/x
  3. Step 3: Cross multiply
    2,202.59x = 3,039.49 × 1,207.87
  4. Step 4: Simplify right side
    2,202.59x = 3,671,308.79
  5. Step 5: Solve for x
    x = 3,671,308.79/2,202.59
  6. Step 6: Final answer
    x = 1,666.81

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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.