Home / 3,112.16-4,296.11-1,933.61

Finding the Fourth Proportional to 3,112.16, 4,296.11 and 1,933.61

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Solution

The fourth proportional to 3,112.16, 4,296.11 and 1,933.61 is: 2,669.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,112.16 : 4,296.11 = 1,933.61 : x
  2. Step 2: Convert to fraction form
    3,112.16/4,296.11 = 1,933.61/x
  3. Step 3: Cross multiply
    3,112.16x = 4,296.11 × 1,933.61
  4. Step 4: Simplify right side
    3,112.16x = 8,306,970.11
  5. Step 5: Solve for x
    x = 8,306,970.11/3,112.16
  6. Step 6: Final answer
    x = 2,669.20

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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.