Home / 7,868.81-10,858.96-4,331.95

Finding the Fourth Proportional to 7,868.81, 10,858.96 and 4,331.95

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Solution

The fourth proportional to 7,868.81, 10,858.96 and 4,331.95 is: 5,978.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,868.81 : 10,858.96 = 4,331.95 : x
  2. Step 2: Convert to fraction form
    7,868.81/10,858.96 = 4,331.95/x
  3. Step 3: Cross multiply
    7,868.81x = 10,858.96 × 4,331.95
  4. Step 4: Simplify right side
    7,868.81x = 47,040,450.04
  5. Step 5: Solve for x
    x = 47,040,450.04/7,868.81
  6. Step 6: Final answer
    x = 5,978.09

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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.