Home / 5,231.01-7,218.81-2,992.88

Finding the Fourth Proportional to 5,231.01, 7,218.81 and 2,992.88

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Solution

The fourth proportional to 5,231.01, 7,218.81 and 2,992.88 is: 4,130.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,231.01 : 7,218.81 = 2,992.88 : x
  2. Step 2: Convert to fraction form
    5,231.01/7,218.81 = 2,992.88/x
  3. Step 3: Cross multiply
    5,231.01x = 7,218.81 × 2,992.88
  4. Step 4: Simplify right side
    5,231.01x = 21,605,050.12
  5. Step 5: Solve for x
    x = 21,605,050.12/5,231.01
  6. Step 6: Final answer
    x = 4,130.18

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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.