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Finding the Fourth Proportional to 2,794.86, 4,192.30 and 847.08

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Solution

The fourth proportional to 2,794.86, 4,192.30 and 847.08 is: 1,270.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,794.86 : 4,192.30 = 847.08 : x
  2. Step 2: Convert to fraction form
    2,794.86/4,192.30 = 847.08/x
  3. Step 3: Cross multiply
    2,794.86x = 4,192.30 × 847.08
  4. Step 4: Simplify right side
    2,794.86x = 3,551,213.48
  5. Step 5: Solve for x
    x = 3,551,213.48/2,794.86
  6. Step 6: Final answer
    x = 1,270.62

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1.5x scale

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.