Home / 3,095.20-4,642.80-2,171.80

Finding the Fourth Proportional to 3,095.20, 4,642.80 and 2,171.80

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Solution

The fourth proportional to 3,095.20, 4,642.80 and 2,171.80 is: 3,257.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,095.20 : 4,642.80 = 2,171.80 : x
  2. Step 2: Convert to fraction form
    3,095.20/4,642.80 = 2,171.80/x
  3. Step 3: Cross multiply
    3,095.20x = 4,642.80 × 2,171.80
  4. Step 4: Simplify right side
    3,095.20x = 10,083,233.04
  5. Step 5: Solve for x
    x = 10,083,233.04/3,095.20
  6. Step 6: Final answer
    x = 3,257.70

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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.