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Finding the Fourth Proportional to 3,698.52, 5,103.95 and 2,126.52

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Solution

The fourth proportional to 3,698.52, 5,103.95 and 2,126.52 is: 2,934.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,698.52 : 5,103.95 = 2,126.52 : x
  2. Step 2: Convert to fraction form
    3,698.52/5,103.95 = 2,126.52/x
  3. Step 3: Cross multiply
    3,698.52x = 5,103.95 × 2,126.52
  4. Step 4: Simplify right side
    3,698.52x = 10,853,651.75
  5. Step 5: Solve for x
    x = 10,853,651.75/3,698.52
  6. Step 6: Final answer
    x = 2,934.59

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1.5x scale

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.