Home / 2,340.82-3,510.63-1,107.90

Finding the Fourth Proportional to 2,340.82, 3,510.63 and 1,107.90

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Solution

The fourth proportional to 2,340.82, 3,510.63 and 1,107.90 is: 1,661.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,340.82 : 3,510.63 = 1,107.90 : x
  2. Step 2: Convert to fraction form
    2,340.82/3,510.63 = 1,107.90/x
  3. Step 3: Cross multiply
    2,340.82x = 3,510.63 × 1,107.90
  4. Step 4: Simplify right side
    2,340.82x = 3,889,426.98
  5. Step 5: Solve for x
    x = 3,889,426.98/2,340.82
  6. Step 6: Final answer
    x = 1,661.57

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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.