Home / 5,230.27-7,216.90-2,991.68

Finding the Fourth Proportional to 5,230.27, 7,216.90 and 2,991.68

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Solution

The fourth proportional to 5,230.27, 7,216.90 and 2,991.68 is: 4,128.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,230.27 : 7,216.90 = 2,991.68 : x
  2. Step 2: Convert to fraction form
    5,230.27/7,216.90 = 2,991.68/x
  3. Step 3: Cross multiply
    5,230.27x = 7,216.90 × 2,991.68
  4. Step 4: Simplify right side
    5,230.27x = 21,590,679.49
  5. Step 5: Solve for x
    x = 21,590,679.49/5,230.27
  6. Step 6: Final answer
    x = 4,128.02

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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.