Home / 6,785.64-9,364.38-3,800.78

Finding the Fourth Proportional to 6,785.64, 9,364.38 and 3,800.78

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Solution

The fourth proportional to 6,785.64, 9,364.38 and 3,800.78 is: 5,245.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,785.64 : 9,364.38 = 3,800.78 : x
  2. Step 2: Convert to fraction form
    6,785.64/9,364.38 = 3,800.78/x
  3. Step 3: Cross multiply
    6,785.64x = 9,364.38 × 3,800.78
  4. Step 4: Simplify right side
    6,785.64x = 35,591,948.22
  5. Step 5: Solve for x
    x = 35,591,948.22/6,785.64
  6. Step 6: Final answer
    x = 5,245.19

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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.