Home / 2,868.39-3,959.22-1,873.81

Finding the Fourth Proportional to 2,868.39, 3,959.22 and 1,873.81

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Solution

The fourth proportional to 2,868.39, 3,959.22 and 1,873.81 is: 2,586.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,868.39 : 3,959.22 = 1,873.81 : x
  2. Step 2: Convert to fraction form
    2,868.39/3,959.22 = 1,873.81/x
  3. Step 3: Cross multiply
    2,868.39x = 3,959.22 × 1,873.81
  4. Step 4: Simplify right side
    2,868.39x = 7,418,826.03
  5. Step 5: Solve for x
    x = 7,418,826.03/2,868.39
  6. Step 6: Final answer
    x = 2,586.41

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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.