Home / 3,868.45-5,338.91-3,237.86

Finding the Fourth Proportional to 3,868.45, 5,338.91 and 3,237.86

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Solution

The fourth proportional to 3,868.45, 5,338.91 and 3,237.86 is: 4,468.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,868.45 : 5,338.91 = 3,237.86 : x
  2. Step 2: Convert to fraction form
    3,868.45/5,338.91 = 3,237.86/x
  3. Step 3: Cross multiply
    3,868.45x = 5,338.91 × 3,237.86
  4. Step 4: Simplify right side
    3,868.45x = 17,286,643.13
  5. Step 5: Solve for x
    x = 17,286,643.13/3,868.45
  6. Step 6: Final answer
    x = 4,468.62

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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.