Home / 3,081.48-4,625-1,438.96

Finding the Fourth Proportional to 3,081.48, 4,625 and 1,438.96

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Solution

The fourth proportional to 3,081.48, 4,625 and 1,438.96 is: 2,159.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,081.48 : 4,625 = 1,438.96 : x
  2. Step 2: Convert to fraction form
    3,081.48/4,625 = 1,438.96/x
  3. Step 3: Cross multiply
    3,081.48x = 4,625 × 1,438.96
  4. Step 4: Simplify right side
    3,081.48x = 6,655,190
  5. Step 5: Solve for x
    x = 6,655,190/3,081.48
  6. Step 6: Final answer
    x = 2,159.74

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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.