Home / 2,039.63-2,814.68-1,108.13

Finding the Fourth Proportional to 2,039.63, 2,814.68 and 1,108.13

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Solution

The fourth proportional to 2,039.63, 2,814.68 and 1,108.13 is: 1,529.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,039.63 : 2,814.68 = 1,108.13 : x
  2. Step 2: Convert to fraction form
    2,039.63/2,814.68 = 1,108.13/x
  3. Step 3: Cross multiply
    2,039.63x = 2,814.68 × 1,108.13
  4. Step 4: Simplify right side
    2,039.63x = 3,119,020.05
  5. Step 5: Solve for x
    x = 3,119,020.05/2,039.63
  6. Step 6: Final answer
    x = 1,529.21

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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.