Home / 5,211.54-7,192.00-2,853.90

Finding the Fourth Proportional to 5,211.54, 7,192.00 and 2,853.90

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Solution

The fourth proportional to 5,211.54, 7,192.00 and 2,853.90 is: 3,938.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,211.54 : 7,192.00 = 2,853.90 : x
  2. Step 2: Convert to fraction form
    5,211.54/7,192.00 = 2,853.90/x
  3. Step 3: Cross multiply
    5,211.54x = 7,192.00 × 2,853.90
  4. Step 4: Simplify right side
    5,211.54x = 20,525,205.71
  5. Step 5: Solve for x
    x = 20,525,205.71/5,211.54
  6. Step 6: Final answer
    x = 3,938.42

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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.