Home / 5,229.80-7,216.02-2,991.10

Finding the Fourth Proportional to 5,229.80, 7,216.02 and 2,991.10

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Solution

The fourth proportional to 5,229.80, 7,216.02 and 2,991.10 is: 4,127.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,229.80 : 7,216.02 = 2,991.10 : x
  2. Step 2: Convert to fraction form
    5,229.80/7,216.02 = 2,991.10/x
  3. Step 3: Cross multiply
    5,229.80x = 7,216.02 × 2,991.10
  4. Step 4: Simplify right side
    5,229.80x = 21,583,837.42
  5. Step 5: Solve for x
    x = 21,583,837.42/5,229.80
  6. Step 6: Final answer
    x = 4,127.09

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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.