Home / 2,039.72-2,814.89-1,108.22

Finding the Fourth Proportional to 2,039.72, 2,814.89 and 1,108.22

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Solution

The fourth proportional to 2,039.72, 2,814.89 and 1,108.22 is: 1,529.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,039.72 : 2,814.89 = 1,108.22 : x
  2. Step 2: Convert to fraction form
    2,039.72/2,814.89 = 1,108.22/x
  3. Step 3: Cross multiply
    2,039.72x = 2,814.89 × 1,108.22
  4. Step 4: Simplify right side
    2,039.72x = 3,119,497.78
  5. Step 5: Solve for x
    x = 3,119,497.78/2,039.72
  6. Step 6: Final answer
    x = 1,529.38

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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.