Home / 2,427.39-3,638-2,113.76

Finding the Fourth Proportional to 2,427.39, 3,638 and 2,113.76

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Solution

The fourth proportional to 2,427.39, 3,638 and 2,113.76 is: 3,167.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,427.39 : 3,638 = 2,113.76 : x
  2. Step 2: Convert to fraction form
    2,427.39/3,638 = 2,113.76/x
  3. Step 3: Cross multiply
    2,427.39x = 3,638 × 2,113.76
  4. Step 4: Simplify right side
    2,427.39x = 7,689,858.88
  5. Step 5: Solve for x
    x = 7,689,858.88/2,427.39
  6. Step 6: Final answer
    x = 3,167.95

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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.