Home / 6,391.11-8,818.74-3,665.25

Finding the Fourth Proportional to 6,391.11, 8,818.74 and 3,665.25

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Solution

The fourth proportional to 6,391.11, 8,818.74 and 3,665.25 is: 5,057.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,391.11 : 8,818.74 = 3,665.25 : x
  2. Step 2: Convert to fraction form
    6,391.11/8,818.74 = 3,665.25/x
  3. Step 3: Cross multiply
    6,391.11x = 8,818.74 × 3,665.25
  4. Step 4: Simplify right side
    6,391.11x = 32,322,886.79
  5. Step 5: Solve for x
    x = 32,322,886.79/6,391.11
  6. Step 6: Final answer
    x = 5,057.48

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Half scale
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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.