Home / 3,124.10-4,288.69-2,681.23

Finding the Fourth Proportional to 3,124.10, 4,288.69 and 2,681.23

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Solution

The fourth proportional to 3,124.10, 4,288.69 and 2,681.23 is: 3,680.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,124.10 : 4,288.69 = 2,681.23 : x
  2. Step 2: Convert to fraction form
    3,124.10/4,288.69 = 2,681.23/x
  3. Step 3: Cross multiply
    3,124.10x = 4,288.69 × 2,681.23
  4. Step 4: Simplify right side
    3,124.10x = 11,498,964.29
  5. Step 5: Solve for x
    x = 11,498,964.29/3,124.10
  6. Step 6: Final answer
    x = 3,680.73

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.