Home / 3,107.32-4,631-3,081.48

Finding the Fourth Proportional to 3,107.32, 4,631 and 3,081.48

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Solution

The fourth proportional to 3,107.32, 4,631 and 3,081.48 is: 4,592.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,107.32 : 4,631 = 3,081.48 : x
  2. Step 2: Convert to fraction form
    3,107.32/4,631 = 3,081.48/x
  3. Step 3: Cross multiply
    3,107.32x = 4,631 × 3,081.48
  4. Step 4: Simplify right side
    3,107.32x = 14,270,333.88
  5. Step 5: Solve for x
    x = 14,270,333.88/3,107.32
  6. Step 6: Final answer
    x = 4,592.49

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.