Home / 4,253.41-6,380.78-1,331.44

Finding the Fourth Proportional to 4,253.41, 6,380.78 and 1,331.44

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Solution

The fourth proportional to 4,253.41, 6,380.78 and 1,331.44 is: 1,997.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,253.41 : 6,380.78 = 1,331.44 : x
  2. Step 2: Convert to fraction form
    4,253.41/6,380.78 = 1,331.44/x
  3. Step 3: Cross multiply
    4,253.41x = 6,380.78 × 1,331.44
  4. Step 4: Simplify right side
    4,253.41x = 8,495,603.11
  5. Step 5: Solve for x
    x = 8,495,603.11/4,253.41
  6. Step 6: Final answer
    x = 1,997.36

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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.