Home / 1,500.57-2,249.67-1,239.75

Finding the Fourth Proportional to 1,500.57, 2,249.67 and 1,239.75

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Solution

The fourth proportional to 1,500.57, 2,249.67 and 1,239.75 is: 1,858.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,500.57 : 2,249.67 = 1,239.75 : x
  2. Step 2: Convert to fraction form
    1,500.57/2,249.67 = 1,239.75/x
  3. Step 3: Cross multiply
    1,500.57x = 2,249.67 × 1,239.75
  4. Step 4: Simplify right side
    1,500.57x = 2,789,028.38
  5. Step 5: Solve for x
    x = 2,789,028.38/1,500.57
  6. Step 6: Final answer
    x = 1,858.65

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1.5x scale

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.