Home / 2,862.78-3,952.40-2,198.34

Finding the Fourth Proportional to 2,862.78, 3,952.40 and 2,198.34

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Solution

The fourth proportional to 2,862.78, 3,952.40 and 2,198.34 is: 3,035.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,862.78 : 3,952.40 = 2,198.34 : x
  2. Step 2: Convert to fraction form
    2,862.78/3,952.40 = 2,198.34/x
  3. Step 3: Cross multiply
    2,862.78x = 3,952.40 × 2,198.34
  4. Step 4: Simplify right side
    2,862.78x = 8,688,708.02
  5. Step 5: Solve for x
    x = 8,688,708.02/2,862.78
  6. Step 6: Final answer
    x = 3,035.06

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1.5x scale

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.