Home / 2,214.12-3,320.80-674.76

Finding the Fourth Proportional to 2,214.12, 3,320.80 and 674.76

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Solution

The fourth proportional to 2,214.12, 3,320.80 and 674.76 is: 1,012.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,214.12 : 3,320.80 = 674.76 : x
  2. Step 2: Convert to fraction form
    2,214.12/3,320.80 = 674.76/x
  3. Step 3: Cross multiply
    2,214.12x = 3,320.80 × 674.76
  4. Step 4: Simplify right side
    2,214.12x = 2,240,743.01
  5. Step 5: Solve for x
    x = 2,240,743.01/2,214.12
  6. Step 6: Final answer
    x = 1,012.02

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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.