Home / 5,117.45-7,679.81-2,196.59

Finding the Fourth Proportional to 5,117.45, 7,679.81 and 2,196.59

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Solution

The fourth proportional to 5,117.45, 7,679.81 and 2,196.59 is: 3,296.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,117.45 : 7,679.81 = 2,196.59 : x
  2. Step 2: Convert to fraction form
    5,117.45/7,679.81 = 2,196.59/x
  3. Step 3: Cross multiply
    5,117.45x = 7,679.81 × 2,196.59
  4. Step 4: Simplify right side
    5,117.45x = 16,869,360.94
  5. Step 5: Solve for x
    x = 16,869,360.94/5,117.45
  6. Step 6: Final answer
    x = 3,296.44

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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.