Home / 6,919.78-9,549.35-3,935.44

Finding the Fourth Proportional to 6,919.78, 9,549.35 and 3,935.44

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Solution

The fourth proportional to 6,919.78, 9,549.35 and 3,935.44 is: 5,430.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,919.78 : 9,549.35 = 3,935.44 : x
  2. Step 2: Convert to fraction form
    6,919.78/9,549.35 = 3,935.44/x
  3. Step 3: Cross multiply
    6,919.78x = 9,549.35 × 3,935.44
  4. Step 4: Simplify right side
    6,919.78x = 37,580,874.29
  5. Step 5: Solve for x
    x = 37,580,874.29/6,919.78
  6. Step 6: Final answer
    x = 5,430.93

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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.