Home / 2,353.68-3,248.28-1,422

Finding the Fourth Proportional to 2,353.68, 3,248.28 and 1,422

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Solution

The fourth proportional to 2,353.68, 3,248.28 and 1,422 is: 1,962.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,353.68 : 3,248.28 = 1,422 : x
  2. Step 2: Convert to fraction form
    2,353.68/3,248.28 = 1,422/x
  3. Step 3: Cross multiply
    2,353.68x = 3,248.28 × 1,422
  4. Step 4: Simplify right side
    2,353.68x = 4,619,054.16
  5. Step 5: Solve for x
    x = 4,619,054.16/2,353.68
  6. Step 6: Final answer
    x = 1,962.48

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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.