Home / 3,913.06-5,400.02-2,144.66

Finding the Fourth Proportional to 3,913.06, 5,400.02 and 2,144.66

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Solution

The fourth proportional to 3,913.06, 5,400.02 and 2,144.66 is: 2,959.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,913.06 : 5,400.02 = 2,144.66 : x
  2. Step 2: Convert to fraction form
    3,913.06/5,400.02 = 2,144.66/x
  3. Step 3: Cross multiply
    3,913.06x = 5,400.02 × 2,144.66
  4. Step 4: Simplify right side
    3,913.06x = 11,581,196.17
  5. Step 5: Solve for x
    x = 11,581,196.17/3,913.06
  6. Step 6: Final answer
    x = 2,959.63

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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.