Home / 1,499.22-2,249.26-906.90

Finding the Fourth Proportional to 1,499.22, 2,249.26 and 906.90

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Solution

The fourth proportional to 1,499.22, 2,249.26 and 906.90 is: 1,360.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,499.22 : 2,249.26 = 906.90 : x
  2. Step 2: Convert to fraction form
    1,499.22/2,249.26 = 906.90/x
  3. Step 3: Cross multiply
    1,499.22x = 2,249.26 × 906.90
  4. Step 4: Simplify right side
    1,499.22x = 2,039,853.89
  5. Step 5: Solve for x
    x = 2,039,853.89/1,499.22
  6. Step 6: Final answer
    x = 1,360.61

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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.