Home / 8,431.59-12,649.38-2,884.98

Finding the Fourth Proportional to 8,431.59, 12,649.38 and 2,884.98

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Solution

The fourth proportional to 8,431.59, 12,649.38 and 2,884.98 is: 4,328.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,431.59 : 12,649.38 = 2,884.98 : x
  2. Step 2: Convert to fraction form
    8,431.59/12,649.38 = 2,884.98/x
  3. Step 3: Cross multiply
    8,431.59x = 12,649.38 × 2,884.98
  4. Step 4: Simplify right side
    8,431.59x = 36,493,208.31
  5. Step 5: Solve for x
    x = 36,493,208.31/8,431.59
  6. Step 6: Final answer
    x = 4,328.15

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.