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Finding the Fourth Proportional to 2,798.64, 4,199.12 and 1,934.24

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Solution

The fourth proportional to 2,798.64, 4,199.12 and 1,934.24 is: 2,902.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,798.64 : 4,199.12 = 1,934.24 : x
  2. Step 2: Convert to fraction form
    2,798.64/4,199.12 = 1,934.24/x
  3. Step 3: Cross multiply
    2,798.64x = 4,199.12 × 1,934.24
  4. Step 4: Simplify right side
    2,798.64x = 8,122,105.87
  5. Step 5: Solve for x
    x = 8,122,105.87/2,798.64
  6. Step 6: Final answer
    x = 2,902.16

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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.