Home / 3,941.26-5,438.87-2,148.76

Finding the Fourth Proportional to 3,941.26, 5,438.87 and 2,148.76

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Solution

The fourth proportional to 3,941.26, 5,438.87 and 2,148.76 is: 2,965.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,941.26 : 5,438.87 = 2,148.76 : x
  2. Step 2: Convert to fraction form
    3,941.26/5,438.87 = 2,148.76/x
  3. Step 3: Cross multiply
    3,941.26x = 5,438.87 × 2,148.76
  4. Step 4: Simplify right side
    3,941.26x = 11,686,838.47
  5. Step 5: Solve for x
    x = 11,686,838.47/3,941.26
  6. Step 6: Final answer
    x = 2,965.25

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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.