Home / 3,391.13-4,679.78-2,064.57

Finding the Fourth Proportional to 3,391.13, 4,679.78 and 2,064.57

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Solution

The fourth proportional to 3,391.13, 4,679.78 and 2,064.57 is: 2,849.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,391.13 : 4,679.78 = 2,064.57 : x
  2. Step 2: Convert to fraction form
    3,391.13/4,679.78 = 2,064.57/x
  3. Step 3: Cross multiply
    3,391.13x = 4,679.78 × 2,064.57
  4. Step 4: Simplify right side
    3,391.13x = 9,661,723.07
  5. Step 5: Solve for x
    x = 9,661,723.07/3,391.13
  6. Step 6: Final answer
    x = 2,849.12

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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.