Home / 4,266.78-5,889.27-2,778.78

Finding the Fourth Proportional to 4,266.78, 5,889.27 and 2,778.78

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Solution

The fourth proportional to 4,266.78, 5,889.27 and 2,778.78 is: 3,835.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,266.78 : 5,889.27 = 2,778.78 : x
  2. Step 2: Convert to fraction form
    4,266.78/5,889.27 = 2,778.78/x
  3. Step 3: Cross multiply
    4,266.78x = 5,889.27 × 2,778.78
  4. Step 4: Simplify right side
    4,266.78x = 16,364,985.69
  5. Step 5: Solve for x
    x = 16,364,985.69/4,266.78
  6. Step 6: Final answer
    x = 3,835.44

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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.