Home / 3,913.36-5,400.51-2,144.85

Finding the Fourth Proportional to 3,913.36, 5,400.51 and 2,144.85

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Solution

The fourth proportional to 3,913.36, 5,400.51 and 2,144.85 is: 2,959.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,913.36 : 5,400.51 = 2,144.85 : x
  2. Step 2: Convert to fraction form
    3,913.36/5,400.51 = 2,144.85/x
  3. Step 3: Cross multiply
    3,913.36x = 5,400.51 × 2,144.85
  4. Step 4: Simplify right side
    3,913.36x = 11,583,283.87
  5. Step 5: Solve for x
    x = 11,583,283.87/3,913.36
  6. Step 6: Final answer
    x = 2,959.93

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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.