Home / 2,810.97-4,215.15-1,641.31

Finding the Fourth Proportional to 2,810.97, 4,215.15 and 1,641.31

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Solution

The fourth proportional to 2,810.97, 4,215.15 and 1,641.31 is: 2,461.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,810.97 : 4,215.15 = 1,641.31 : x
  2. Step 2: Convert to fraction form
    2,810.97/4,215.15 = 1,641.31/x
  3. Step 3: Cross multiply
    2,810.97x = 4,215.15 × 1,641.31
  4. Step 4: Simplify right side
    2,810.97x = 6,918,367.85
  5. Step 5: Solve for x
    x = 6,918,367.85/2,810.97
  6. Step 6: Final answer
    x = 2,461.20

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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.