Home / 6,919.47-9,546.80-3,934.89

Finding the Fourth Proportional to 6,919.47, 9,546.80 and 3,934.89

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Solution

The fourth proportional to 6,919.47, 9,546.80 and 3,934.89 is: 5,428.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,919.47 : 9,546.80 = 3,934.89 : x
  2. Step 2: Convert to fraction form
    6,919.47/9,546.80 = 3,934.89/x
  3. Step 3: Cross multiply
    6,919.47x = 9,546.80 × 3,934.89
  4. Step 4: Simplify right side
    6,919.47x = 37,565,588.18
  5. Step 5: Solve for x
    x = 37,565,588.18/6,919.47
  6. Step 6: Final answer
    x = 5,428.97

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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.