Home / 3,838.42-5,296.28-2,777.84

Finding the Fourth Proportional to 3,838.42, 5,296.28 and 2,777.84

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Solution

The fourth proportional to 3,838.42, 5,296.28 and 2,777.84 is: 3,832.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,838.42 : 5,296.28 = 2,777.84 : x
  2. Step 2: Convert to fraction form
    3,838.42/5,296.28 = 2,777.84/x
  3. Step 3: Cross multiply
    3,838.42x = 5,296.28 × 2,777.84
  4. Step 4: Simplify right side
    3,838.42x = 14,712,218.44
  5. Step 5: Solve for x
    x = 14,712,218.44/3,838.42
  6. Step 6: Final answer
    x = 3,832.88

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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.