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Finding the Fourth Proportional to 3,149.62, 4,346.49 and 1,752.40

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Solution

The fourth proportional to 3,149.62, 4,346.49 and 1,752.40 is: 2,418.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,149.62 : 4,346.49 = 1,752.40 : x
  2. Step 2: Convert to fraction form
    3,149.62/4,346.49 = 1,752.40/x
  3. Step 3: Cross multiply
    3,149.62x = 4,346.49 × 1,752.40
  4. Step 4: Simplify right side
    3,149.62x = 7,616,789.08
  5. Step 5: Solve for x
    x = 7,616,789.08/3,149.62
  6. Step 6: Final answer
    x = 2,418.32

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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.