Home / 2,201.76-3,038.45-1,207.13

Finding the Fourth Proportional to 2,201.76, 3,038.45 and 1,207.13

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Solution

The fourth proportional to 2,201.76, 3,038.45 and 1,207.13 is: 1,665.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,201.76 : 3,038.45 = 1,207.13 : x
  2. Step 2: Convert to fraction form
    2,201.76/3,038.45 = 1,207.13/x
  3. Step 3: Cross multiply
    2,201.76x = 3,038.45 × 1,207.13
  4. Step 4: Simplify right side
    2,201.76x = 3,667,804.15
  5. Step 5: Solve for x
    x = 3,667,804.15/2,201.76
  6. Step 6: Final answer
    x = 1,665.85

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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.