Home / 2,340.60-3,510.96-1,107.72

Finding the Fourth Proportional to 2,340.60, 3,510.96 and 1,107.72

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Solution

The fourth proportional to 2,340.60, 3,510.96 and 1,107.72 is: 1,661.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,340.60 : 3,510.96 = 1,107.72 : x
  2. Step 2: Convert to fraction form
    2,340.60/3,510.96 = 1,107.72/x
  3. Step 3: Cross multiply
    2,340.60x = 3,510.96 × 1,107.72
  4. Step 4: Simplify right side
    2,340.60x = 3,889,160.61
  5. Step 5: Solve for x
    x = 3,889,160.61/2,340.60
  6. Step 6: Final answer
    x = 1,661.61

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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.