Home / 2,868.89-3,959.21-1,610.28

Finding the Fourth Proportional to 2,868.89, 3,959.21 and 1,610.28

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Solution

The fourth proportional to 2,868.89, 3,959.21 and 1,610.28 is: 2,222.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,868.89 : 3,959.21 = 1,610.28 : x
  2. Step 2: Convert to fraction form
    2,868.89/3,959.21 = 1,610.28/x
  3. Step 3: Cross multiply
    2,868.89x = 3,959.21 × 1,610.28
  4. Step 4: Simplify right side
    2,868.89x = 6,375,440.70
  5. Step 5: Solve for x
    x = 6,375,440.70/2,868.89
  6. Step 6: Final answer
    x = 2,222.27

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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.