Home / 3,158.29-4,362.86-2,992.21

Finding the Fourth Proportional to 3,158.29, 4,362.86 and 2,992.21

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Solution

The fourth proportional to 3,158.29, 4,362.86 and 2,992.21 is: 4,133.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,158.29 : 4,362.86 = 2,992.21 : x
  2. Step 2: Convert to fraction form
    3,158.29/4,362.86 = 2,992.21/x
  3. Step 3: Cross multiply
    3,158.29x = 4,362.86 × 2,992.21
  4. Step 4: Simplify right side
    3,158.29x = 13,054,593.32
  5. Step 5: Solve for x
    x = 13,054,593.32/3,158.29
  6. Step 6: Final answer
    x = 4,133.44

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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.