Home / 7,112.80-10,669.20-2,182.46

Finding the Fourth Proportional to 7,112.80, 10,669.20 and 2,182.46

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Solution

The fourth proportional to 7,112.80, 10,669.20 and 2,182.46 is: 3,273.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,112.80 : 10,669.20 = 2,182.46 : x
  2. Step 2: Convert to fraction form
    7,112.80/10,669.20 = 2,182.46/x
  3. Step 3: Cross multiply
    7,112.80x = 10,669.20 × 2,182.46
  4. Step 4: Simplify right side
    7,112.80x = 23,285,102.23
  5. Step 5: Solve for x
    x = 23,285,102.23/7,112.80
  6. Step 6: Final answer
    x = 3,273.69

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1.5x scale

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.