Home / 2,679.13-3,697.57-1,616.95

Finding the Fourth Proportional to 2,679.13, 3,697.57 and 1,616.95

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Solution

The fourth proportional to 2,679.13, 3,697.57 and 1,616.95 is: 2,231.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,679.13 : 3,697.57 = 1,616.95 : x
  2. Step 2: Convert to fraction form
    2,679.13/3,697.57 = 1,616.95/x
  3. Step 3: Cross multiply
    2,679.13x = 3,697.57 × 1,616.95
  4. Step 4: Simplify right side
    2,679.13x = 5,978,785.81
  5. Step 5: Solve for x
    x = 5,978,785.81/2,679.13
  6. Step 6: Final answer
    x = 2,231.61

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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.