Home / 2,439.11-3,365.94-1,320.02

Finding the Fourth Proportional to 2,439.11, 3,365.94 and 1,320.02

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Solution

The fourth proportional to 2,439.11, 3,365.94 and 1,320.02 is: 1,821.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,439.11 : 3,365.94 = 1,320.02 : x
  2. Step 2: Convert to fraction form
    2,439.11/3,365.94 = 1,320.02/x
  3. Step 3: Cross multiply
    2,439.11x = 3,365.94 × 1,320.02
  4. Step 4: Simplify right side
    2,439.11x = 4,443,091.29
  5. Step 5: Solve for x
    x = 4,443,091.29/2,439.11
  6. Step 6: Final answer
    x = 1,821.61

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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.