Home / 2,154.29-3,236.90-1,374.66

Finding the Fourth Proportional to 2,154.29, 3,236.90 and 1,374.66

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Solution

The fourth proportional to 2,154.29, 3,236.90 and 1,374.66 is: 2,065.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,154.29 : 3,236.90 = 1,374.66 : x
  2. Step 2: Convert to fraction form
    2,154.29/3,236.90 = 1,374.66/x
  3. Step 3: Cross multiply
    2,154.29x = 3,236.90 × 1,374.66
  4. Step 4: Simplify right side
    2,154.29x = 4,449,630.08
  5. Step 5: Solve for x
    x = 4,449,630.08/2,154.29
  6. Step 6: Final answer
    x = 2,065.48

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.