Home / 3,180.16-4,384.86-2,207.56

Finding the Fourth Proportional to 3,180.16, 4,384.86 and 2,207.56

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Solution

The fourth proportional to 3,180.16, 4,384.86 and 2,207.56 is: 3,043.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,180.16 : 4,384.86 = 2,207.56 : x
  2. Step 2: Convert to fraction form
    3,180.16/4,384.86 = 2,207.56/x
  3. Step 3: Cross multiply
    3,180.16x = 4,384.86 × 2,207.56
  4. Step 4: Simplify right side
    3,180.16x = 9,679,841.54
  5. Step 5: Solve for x
    x = 9,679,841.54/3,180.16
  6. Step 6: Final answer
    x = 3,043.82

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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.