Home / 4,272.44-6,408.68-1,310.87

Finding the Fourth Proportional to 4,272.44, 6,408.68 and 1,310.87

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Solution

The fourth proportional to 4,272.44, 6,408.68 and 1,310.87 is: 1,966.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,272.44 : 6,408.68 = 1,310.87 : x
  2. Step 2: Convert to fraction form
    4,272.44/6,408.68 = 1,310.87/x
  3. Step 3: Cross multiply
    4,272.44x = 6,408.68 × 1,310.87
  4. Step 4: Simplify right side
    4,272.44x = 8,400,955.82
  5. Step 5: Solve for x
    x = 8,400,955.82/4,272.44
  6. Step 6: Final answer
    x = 1,966.32

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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.