Home / 5,230.72-7,218.20-2,992.81

Finding the Fourth Proportional to 5,230.72, 7,218.20 and 2,992.81

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Solution

The fourth proportional to 5,230.72, 7,218.20 and 2,992.81 is: 4,129.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,230.72 : 7,218.20 = 2,992.81 : x
  2. Step 2: Convert to fraction form
    5,230.72/7,218.20 = 2,992.81/x
  3. Step 3: Cross multiply
    5,230.72x = 7,218.20 × 2,992.81
  4. Step 4: Simplify right side
    5,230.72x = 21,602,701.14
  5. Step 5: Solve for x
    x = 21,602,701.14/5,230.72
  6. Step 6: Final answer
    x = 4,129.97

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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.