Home / 5,681.52-7,840.44-3,163.60

Finding the Fourth Proportional to 5,681.52, 7,840.44 and 3,163.60

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Solution

The fourth proportional to 5,681.52, 7,840.44 and 3,163.60 is: 4,365.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,681.52 : 7,840.44 = 3,163.60 : x
  2. Step 2: Convert to fraction form
    5,681.52/7,840.44 = 3,163.60/x
  3. Step 3: Cross multiply
    5,681.52x = 7,840.44 × 3,163.60
  4. Step 4: Simplify right side
    5,681.52x = 24,804,015.98
  5. Step 5: Solve for x
    x = 24,804,015.98/5,681.52
  6. Step 6: Final answer
    x = 4,365.74

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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.