Home / 3,913.24-5,400.02-2,144.50

Finding the Fourth Proportional to 3,913.24, 5,400.02 and 2,144.50

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Solution

The fourth proportional to 3,913.24, 5,400.02 and 2,144.50 is: 2,959.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,913.24 : 5,400.02 = 2,144.50 : x
  2. Step 2: Convert to fraction form
    3,913.24/5,400.02 = 2,144.50/x
  3. Step 3: Cross multiply
    3,913.24x = 5,400.02 × 2,144.50
  4. Step 4: Simplify right side
    3,913.24x = 11,580,337.88
  5. Step 5: Solve for x
    x = 11,580,337.88/3,913.24
  6. Step 6: Final answer
    x = 2,959.27

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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.