Home / 5,681.55-7,839.60-3,163.59

Finding the Fourth Proportional to 5,681.55, 7,839.60 and 3,163.59

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Solution

The fourth proportional to 5,681.55, 7,839.60 and 3,163.59 is: 4,365.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,681.55 : 7,839.60 = 3,163.59 : x
  2. Step 2: Convert to fraction form
    5,681.55/7,839.60 = 3,163.59/x
  3. Step 3: Cross multiply
    5,681.55x = 7,839.60 × 3,163.59
  4. Step 4: Simplify right side
    5,681.55x = 24,801,280.16
  5. Step 5: Solve for x
    x = 24,801,280.16/5,681.55
  6. Step 6: Final answer
    x = 4,365.23

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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.