Home / 2,151.02-3,226.25-979.76

Finding the Fourth Proportional to 2,151.02, 3,226.25 and 979.76

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Solution

The fourth proportional to 2,151.02, 3,226.25 and 979.76 is: 1,469.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,151.02 : 3,226.25 = 979.76 : x
  2. Step 2: Convert to fraction form
    2,151.02/3,226.25 = 979.76/x
  3. Step 3: Cross multiply
    2,151.02x = 3,226.25 × 979.76
  4. Step 4: Simplify right side
    2,151.02x = 3,160,961.22
  5. Step 5: Solve for x
    x = 3,160,961.22/2,151.02
  6. Step 6: Final answer
    x = 1,469.52

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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.