Home / 3,280.12-4,525.28-2,161.66

Finding the Fourth Proportional to 3,280.12, 4,525.28 and 2,161.66

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Solution

The fourth proportional to 3,280.12, 4,525.28 and 2,161.66 is: 2,982.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,280.12 : 4,525.28 = 2,161.66 : x
  2. Step 2: Convert to fraction form
    3,280.12/4,525.28 = 2,161.66/x
  3. Step 3: Cross multiply
    3,280.12x = 4,525.28 × 2,161.66
  4. Step 4: Simplify right side
    3,280.12x = 9,782,116.76
  5. Step 5: Solve for x
    x = 9,782,116.76/3,280.12
  6. Step 6: Final answer
    x = 2,982.24

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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.