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Finding the Fourth Proportional to 5,722.30, 8,571.30 and 4,750.30

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Solution

The fourth proportional to 5,722.30, 8,571.30 and 4,750.30 is: 7,115.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,722.30 : 8,571.30 = 4,750.30 : x
  2. Step 2: Convert to fraction form
    5,722.30/8,571.30 = 4,750.30/x
  3. Step 3: Cross multiply
    5,722.30x = 8,571.30 × 4,750.30
  4. Step 4: Simplify right side
    5,722.30x = 40,716,246.39
  5. Step 5: Solve for x
    x = 40,716,246.39/5,722.30
  6. Step 6: Final answer
    x = 7,115.36

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.