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Finding the Fourth Proportional to 3,392.91, 5,089.41 and 1,930.32

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Solution

The fourth proportional to 3,392.91, 5,089.41 and 1,930.32 is: 2,895.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,392.91 : 5,089.41 = 1,930.32 : x
  2. Step 2: Convert to fraction form
    3,392.91/5,089.41 = 1,930.32/x
  3. Step 3: Cross multiply
    3,392.91x = 5,089.41 × 1,930.32
  4. Step 4: Simplify right side
    3,392.91x = 9,824,189.91
  5. Step 5: Solve for x
    x = 9,824,189.91/3,392.91
  6. Step 6: Final answer
    x = 2,895.51

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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.