Home / 5,058.91-6,981.11-3,171.51

Finding the Fourth Proportional to 5,058.91, 6,981.11 and 3,171.51

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Solution

The fourth proportional to 5,058.91, 6,981.11 and 3,171.51 is: 4,376.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,058.91 : 6,981.11 = 3,171.51 : x
  2. Step 2: Convert to fraction form
    5,058.91/6,981.11 = 3,171.51/x
  3. Step 3: Cross multiply
    5,058.91x = 6,981.11 × 3,171.51
  4. Step 4: Simplify right side
    5,058.91x = 22,140,625.27
  5. Step 5: Solve for x
    x = 22,140,625.27/5,058.91
  6. Step 6: Final answer
    x = 4,376.56

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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.