Home / 2,180.10-3,269.55-881.70

Finding the Fourth Proportional to 2,180.10, 3,269.55 and 881.70

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Solution

The fourth proportional to 2,180.10, 3,269.55 and 881.70 is: 1,322.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,180.10 : 3,269.55 = 881.70 : x
  2. Step 2: Convert to fraction form
    2,180.10/3,269.55 = 881.70/x
  3. Step 3: Cross multiply
    2,180.10x = 3,269.55 × 881.70
  4. Step 4: Simplify right side
    2,180.10x = 2,882,762.24
  5. Step 5: Solve for x
    x = 2,882,762.24/2,180.10
  6. Step 6: Final answer
    x = 1,322.31

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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.