Home / 2,862.52-3,949.14-1,681.72

Finding the Fourth Proportional to 2,862.52, 3,949.14 and 1,681.72

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Solution

The fourth proportional to 2,862.52, 3,949.14 and 1,681.72 is: 2,320.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,862.52 : 3,949.14 = 1,681.72 : x
  2. Step 2: Convert to fraction form
    2,862.52/3,949.14 = 1,681.72/x
  3. Step 3: Cross multiply
    2,862.52x = 3,949.14 × 1,681.72
  4. Step 4: Simplify right side
    2,862.52x = 6,641,347.72
  5. Step 5: Solve for x
    x = 6,641,347.72/2,862.52
  6. Step 6: Final answer
    x = 2,320.11

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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.