Home / 1,500.28-2,249.43-720.26

Finding the Fourth Proportional to 1,500.28, 2,249.43 and 720.26

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Solution

The fourth proportional to 1,500.28, 2,249.43 and 720.26 is: 1,079.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,500.28 : 2,249.43 = 720.26 : x
  2. Step 2: Convert to fraction form
    1,500.28/2,249.43 = 720.26/x
  3. Step 3: Cross multiply
    1,500.28x = 2,249.43 × 720.26
  4. Step 4: Simplify right side
    1,500.28x = 1,620,174.45
  5. Step 5: Solve for x
    x = 1,620,174.45/1,500.28
  6. Step 6: Final answer
    x = 1,079.91

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.