Home / 3,100.10-4,650.15-2,115.95

Finding the Fourth Proportional to 3,100.10, 4,650.15 and 2,115.95

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Solution

The fourth proportional to 3,100.10, 4,650.15 and 2,115.95 is: 3,173.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,100.10 : 4,650.15 = 2,115.95 : x
  2. Step 2: Convert to fraction form
    3,100.10/4,650.15 = 2,115.95/x
  3. Step 3: Cross multiply
    3,100.10x = 4,650.15 × 2,115.95
  4. Step 4: Simplify right side
    3,100.10x = 9,839,484.89
  5. Step 5: Solve for x
    x = 9,839,484.89/3,100.10
  6. Step 6: Final answer
    x = 3,173.93

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Similar ratio
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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.