Home / 5,681.92-7,840.60-3,163.83

Finding the Fourth Proportional to 5,681.92, 7,840.60 and 3,163.83

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Solution

The fourth proportional to 5,681.92, 7,840.60 and 3,163.83 is: 4,365.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,681.92 : 7,840.60 = 3,163.83 : x
  2. Step 2: Convert to fraction form
    5,681.92/7,840.60 = 3,163.83/x
  3. Step 3: Cross multiply
    5,681.92x = 7,840.60 × 3,163.83
  4. Step 4: Simplify right side
    5,681.92x = 24,806,325.50
  5. Step 5: Solve for x
    x = 24,806,325.50/5,681.92
  6. Step 6: Final answer
    x = 4,365.84

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Half scale
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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.