Home / 5,196.61-7,170.99-2,838.75

Finding the Fourth Proportional to 5,196.61, 7,170.99 and 2,838.75

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Solution

The fourth proportional to 5,196.61, 7,170.99 and 2,838.75 is: 3,917.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,196.61 : 7,170.99 = 2,838.75 : x
  2. Step 2: Convert to fraction form
    5,196.61/7,170.99 = 2,838.75/x
  3. Step 3: Cross multiply
    5,196.61x = 7,170.99 × 2,838.75
  4. Step 4: Simplify right side
    5,196.61x = 20,356,640.77
  5. Step 5: Solve for x
    x = 20,356,640.77/5,196.61
  6. Step 6: Final answer
    x = 3,917.29

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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.