Home / 3,081.14-4,617.28-1,325.66

Finding the Fourth Proportional to 3,081.14, 4,617.28 and 1,325.66

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Solution

The fourth proportional to 3,081.14, 4,617.28 and 1,325.66 is: 1,986.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,081.14 : 4,617.28 = 1,325.66 : x
  2. Step 2: Convert to fraction form
    3,081.14/4,617.28 = 1,325.66/x
  3. Step 3: Cross multiply
    3,081.14x = 4,617.28 × 1,325.66
  4. Step 4: Simplify right side
    3,081.14x = 6,120,936.78
  5. Step 5: Solve for x
    x = 6,120,936.78/3,081.14
  6. Step 6: Final answer
    x = 1,986.59

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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.