Home / 3,472.20-5,206.73-2,155.90

Finding the Fourth Proportional to 3,472.20, 5,206.73 and 2,155.90

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Solution

The fourth proportional to 3,472.20, 5,206.73 and 2,155.90 is: 3,232.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,472.20 : 5,206.73 = 2,155.90 : x
  2. Step 2: Convert to fraction form
    3,472.20/5,206.73 = 2,155.90/x
  3. Step 3: Cross multiply
    3,472.20x = 5,206.73 × 2,155.90
  4. Step 4: Simplify right side
    3,472.20x = 11,225,189.21
  5. Step 5: Solve for x
    x = 11,225,189.21/3,472.20
  6. Step 6: Final answer
    x = 3,232.88

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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.