Home / 4,650.78-6,421.11-2,884.98

Finding the Fourth Proportional to 4,650.78, 6,421.11 and 2,884.98

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Solution

The fourth proportional to 4,650.78, 6,421.11 and 2,884.98 is: 3,983.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,650.78 : 6,421.11 = 2,884.98 : x
  2. Step 2: Convert to fraction form
    4,650.78/6,421.11 = 2,884.98/x
  3. Step 3: Cross multiply
    4,650.78x = 6,421.11 × 2,884.98
  4. Step 4: Simplify right side
    4,650.78x = 18,524,773.93
  5. Step 5: Solve for x
    x = 18,524,773.93/4,650.78
  6. Step 6: Final answer
    x = 3,983.15

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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.