Home / 6,853.91-9,458.66-3,870.08

Finding the Fourth Proportional to 6,853.91, 9,458.66 and 3,870.08

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Solution

The fourth proportional to 6,853.91, 9,458.66 and 3,870.08 is: 5,340.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,853.91 : 9,458.66 = 3,870.08 : x
  2. Step 2: Convert to fraction form
    6,853.91/9,458.66 = 3,870.08/x
  3. Step 3: Cross multiply
    6,853.91x = 9,458.66 × 3,870.08
  4. Step 4: Simplify right side
    6,853.91x = 36,605,704.25
  5. Step 5: Solve for x
    x = 36,605,704.25/6,853.91
  6. Step 6: Final answer
    x = 5,340.85

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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.