Home / 5,230.02-7,217.49-2,991.87

Finding the Fourth Proportional to 5,230.02, 7,217.49 and 2,991.87

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Solution

The fourth proportional to 5,230.02, 7,217.49 and 2,991.87 is: 4,128.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,230.02 : 7,217.49 = 2,991.87 : x
  2. Step 2: Convert to fraction form
    5,230.02/7,217.49 = 2,991.87/x
  3. Step 3: Cross multiply
    5,230.02x = 7,217.49 × 2,991.87
  4. Step 4: Simplify right side
    5,230.02x = 21,593,791.81
  5. Step 5: Solve for x
    x = 21,593,791.81/5,230.02
  6. Step 6: Final answer
    x = 4,128.82

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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.