Home / 3,863.07-5,785.38-3,077.64

Finding the Fourth Proportional to 3,863.07, 5,785.38 and 3,077.64

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Solution

The fourth proportional to 3,863.07, 5,785.38 and 3,077.64 is: 4,609.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,863.07 : 5,785.38 = 3,077.64 : x
  2. Step 2: Convert to fraction form
    3,863.07/5,785.38 = 3,077.64/x
  3. Step 3: Cross multiply
    3,863.07x = 5,785.38 × 3,077.64
  4. Step 4: Simplify right side
    3,863.07x = 17,805,316.90
  5. Step 5: Solve for x
    x = 17,805,316.90/3,863.07
  6. Step 6: Final answer
    x = 4,609.11

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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.