Home / 5,681.16-7,839.90-3,163.68

Finding the Fourth Proportional to 5,681.16, 7,839.90 and 3,163.68

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Solution

The fourth proportional to 5,681.16, 7,839.90 and 3,163.68 is: 4,365.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,681.16 : 7,839.90 = 3,163.68 : x
  2. Step 2: Convert to fraction form
    5,681.16/7,839.90 = 3,163.68/x
  3. Step 3: Cross multiply
    5,681.16x = 7,839.90 × 3,163.68
  4. Step 4: Simplify right side
    5,681.16x = 24,802,934.83
  5. Step 5: Solve for x
    x = 24,802,934.83/5,681.16
  6. Step 6: Final answer
    x = 4,365.82

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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.