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Finding the Fourth Proportional to 2,679.35, 3,695.04 and 1,838.57

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Solution

The fourth proportional to 2,679.35, 3,695.04 and 1,838.57 is: 2,535.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,679.35 : 3,695.04 = 1,838.57 : x
  2. Step 2: Convert to fraction form
    2,679.35/3,695.04 = 1,838.57/x
  3. Step 3: Cross multiply
    2,679.35x = 3,695.04 × 1,838.57
  4. Step 4: Simplify right side
    2,679.35x = 6,793,598.93
  5. Step 5: Solve for x
    x = 6,793,598.93/2,679.35
  6. Step 6: Final answer
    x = 2,535.54

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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.