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Finding the Fourth Proportional to 5,223.78, 7,208.73 and 2,865.96

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Solution

The fourth proportional to 5,223.78, 7,208.73 and 2,865.96 is: 3,954.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,223.78 : 7,208.73 = 2,865.96 : x
  2. Step 2: Convert to fraction form
    5,223.78/7,208.73 = 2,865.96/x
  3. Step 3: Cross multiply
    5,223.78x = 7,208.73 × 2,865.96
  4. Step 4: Simplify right side
    5,223.78x = 20,659,931.83
  5. Step 5: Solve for x
    x = 20,659,931.83/5,223.78
  6. Step 6: Final answer
    x = 3,954.98

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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.