Home / 5,170.66-7,137.96-3,308.74

Finding the Fourth Proportional to 5,170.66, 7,137.96 and 3,308.74

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Solution

The fourth proportional to 5,170.66, 7,137.96 and 3,308.74 is: 4,567.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,170.66 : 7,137.96 = 3,308.74 : x
  2. Step 2: Convert to fraction form
    5,170.66/7,137.96 = 3,308.74/x
  3. Step 3: Cross multiply
    5,170.66x = 7,137.96 × 3,308.74
  4. Step 4: Simplify right side
    5,170.66x = 23,617,653.77
  5. Step 5: Solve for x
    x = 23,617,653.77/5,170.66
  6. Step 6: Final answer
    x = 4,567.63

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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.