Home / 2,338.68-3,227.38-1,290.84

Finding the Fourth Proportional to 2,338.68, 3,227.38 and 1,290.84

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Solution

The fourth proportional to 2,338.68, 3,227.38 and 1,290.84 is: 1,781.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,338.68 : 3,227.38 = 1,290.84 : x
  2. Step 2: Convert to fraction form
    2,338.68/3,227.38 = 1,290.84/x
  3. Step 3: Cross multiply
    2,338.68x = 3,227.38 × 1,290.84
  4. Step 4: Simplify right side
    2,338.68x = 4,166,031.20
  5. Step 5: Solve for x
    x = 4,166,031.20/2,338.68
  6. Step 6: Final answer
    x = 1,781.36

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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.