Home / 5,211.15-7,191.09-2,852.83

Finding the Fourth Proportional to 5,211.15, 7,191.09 and 2,852.83

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Solution

The fourth proportional to 5,211.15, 7,191.09 and 2,852.83 is: 3,936.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,211.15 : 7,191.09 = 2,852.83 : x
  2. Step 2: Convert to fraction form
    5,211.15/7,191.09 = 2,852.83/x
  3. Step 3: Cross multiply
    5,211.15x = 7,191.09 × 2,852.83
  4. Step 4: Simplify right side
    5,211.15x = 20,514,957.28
  5. Step 5: Solve for x
    x = 20,514,957.28/5,211.15
  6. Step 6: Final answer
    x = 3,936.74

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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.