Home / 7,868.75-10,858.66-4,331.98

Finding the Fourth Proportional to 7,868.75, 10,858.66 and 4,331.98

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Solution

The fourth proportional to 7,868.75, 10,858.66 and 4,331.98 is: 5,978.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,868.75 : 10,858.66 = 4,331.98 : x
  2. Step 2: Convert to fraction form
    7,868.75/10,858.66 = 4,331.98/x
  3. Step 3: Cross multiply
    7,868.75x = 10,858.66 × 4,331.98
  4. Step 4: Simplify right side
    7,868.75x = 47,039,500.69
  5. Step 5: Solve for x
    x = 47,039,500.69/7,868.75
  6. Step 6: Final answer
    x = 5,978.02

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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.