Home / 2,615.11-3,940.65-2,163.06

Finding the Fourth Proportional to 2,615.11, 3,940.65 and 2,163.06

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Solution

The fourth proportional to 2,615.11, 3,940.65 and 2,163.06 is: 3,259.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,615.11 : 3,940.65 = 2,163.06 : x
  2. Step 2: Convert to fraction form
    2,615.11/3,940.65 = 2,163.06/x
  3. Step 3: Cross multiply
    2,615.11x = 3,940.65 × 2,163.06
  4. Step 4: Simplify right side
    2,615.11x = 8,523,862.39
  5. Step 5: Solve for x
    x = 8,523,862.39/2,615.11
  6. Step 6: Final answer
    x = 3,259.47

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.