Home / 1,625.20-2,438.94-1,103.96

Finding the Fourth Proportional to 1,625.20, 2,438.94 and 1,103.96

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Solution

The fourth proportional to 1,625.20, 2,438.94 and 1,103.96 is: 1,656.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,625.20 : 2,438.94 = 1,103.96 : x
  2. Step 2: Convert to fraction form
    1,625.20/2,438.94 = 1,103.96/x
  3. Step 3: Cross multiply
    1,625.20x = 2,438.94 × 1,103.96
  4. Step 4: Simplify right side
    1,625.20x = 2,692,492.20
  5. Step 5: Solve for x
    x = 2,692,492.20/1,625.20
  6. Step 6: Final answer
    x = 1,656.71

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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.