Home / 5,196.12-7,170.84-2,838.28

Finding the Fourth Proportional to 5,196.12, 7,170.84 and 2,838.28

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Solution

The fourth proportional to 5,196.12, 7,170.84 and 2,838.28 is: 3,916.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,196.12 : 7,170.84 = 2,838.28 : x
  2. Step 2: Convert to fraction form
    5,196.12/7,170.84 = 2,838.28/x
  3. Step 3: Cross multiply
    5,196.12x = 7,170.84 × 2,838.28
  4. Step 4: Simplify right side
    5,196.12x = 20,352,833.83
  5. Step 5: Solve for x
    x = 20,352,833.83/5,196.12
  6. Step 6: Final answer
    x = 3,916.93

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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.