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Finding the Fourth Proportional to 5,226.57, 7,212.83 and 2,868.87

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Solution

The fourth proportional to 5,226.57, 7,212.83 and 2,868.87 is: 3,959.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,226.57 : 7,212.83 = 2,868.87 : x
  2. Step 2: Convert to fraction form
    5,226.57/7,212.83 = 2,868.87/x
  3. Step 3: Cross multiply
    5,226.57x = 7,212.83 × 2,868.87
  4. Step 4: Simplify right side
    5,226.57x = 20,692,657.26
  5. Step 5: Solve for x
    x = 20,692,657.26/5,226.57
  6. Step 6: Final answer
    x = 3,959.13

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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.