Home / 2,427.68-3,638.66-1,126.42

Finding the Fourth Proportional to 2,427.68, 3,638.66 and 1,126.42

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Solution

The fourth proportional to 2,427.68, 3,638.66 and 1,126.42 is: 1,688.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,427.68 : 3,638.66 = 1,126.42 : x
  2. Step 2: Convert to fraction form
    2,427.68/3,638.66 = 1,126.42/x
  3. Step 3: Cross multiply
    2,427.68x = 3,638.66 × 1,126.42
  4. Step 4: Simplify right side
    2,427.68x = 4,098,659.40
  5. Step 5: Solve for x
    x = 4,098,659.40/2,427.68
  6. Step 6: Final answer
    x = 1,688.30

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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.