Home / 3,630.93-5,446.40-2,985.90

Finding the Fourth Proportional to 3,630.93, 5,446.40 and 2,985.90

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Solution

The fourth proportional to 3,630.93, 5,446.40 and 2,985.90 is: 4,478.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,630.93 : 5,446.40 = 2,985.90 : x
  2. Step 2: Convert to fraction form
    3,630.93/5,446.40 = 2,985.90/x
  3. Step 3: Cross multiply
    3,630.93x = 5,446.40 × 2,985.90
  4. Step 4: Simplify right side
    3,630.93x = 16,262,390.83
  5. Step 5: Solve for x
    x = 16,262,390.83/3,630.93
  6. Step 6: Final answer
    x = 4,478.85

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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.