Home / 3,230.18-4,456.95-2,112.75

Finding the Fourth Proportional to 3,230.18, 4,456.95 and 2,112.75

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Solution

The fourth proportional to 3,230.18, 4,456.95 and 2,112.75 is: 2,915.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,230.18 : 4,456.95 = 2,112.75 : x
  2. Step 2: Convert to fraction form
    3,230.18/4,456.95 = 2,112.75/x
  3. Step 3: Cross multiply
    3,230.18x = 4,456.95 × 2,112.75
  4. Step 4: Simplify right side
    3,230.18x = 9,416,421.11
  5. Step 5: Solve for x
    x = 9,416,421.11/3,230.18
  6. Step 6: Final answer
    x = 2,915.14

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.