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Finding the Fourth Proportional to 7,859.50, 11,794.65 and 3,242.50

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Solution

The fourth proportional to 7,859.50, 11,794.65 and 3,242.50 is: 4,865.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,859.50 : 11,794.65 = 3,242.50 : x
  2. Step 2: Convert to fraction form
    7,859.50/11,794.65 = 3,242.50/x
  3. Step 3: Cross multiply
    7,859.50x = 11,794.65 × 3,242.50
  4. Step 4: Simplify right side
    7,859.50x = 38,244,152.63
  5. Step 5: Solve for x
    x = 38,244,152.63/7,859.50
  6. Step 6: Final answer
    x = 4,865.98

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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.