Home / 2,039.34-2,814.31-1,107.84

Finding the Fourth Proportional to 2,039.34, 2,814.31 and 1,107.84

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Solution

The fourth proportional to 2,039.34, 2,814.31 and 1,107.84 is: 1,528.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,039.34 : 2,814.31 = 1,107.84 : x
  2. Step 2: Convert to fraction form
    2,039.34/2,814.31 = 1,107.84/x
  3. Step 3: Cross multiply
    2,039.34x = 2,814.31 × 1,107.84
  4. Step 4: Simplify right side
    2,039.34x = 3,117,817.13
  5. Step 5: Solve for x
    x = 3,117,817.13/2,039.34
  6. Step 6: Final answer
    x = 1,528.83

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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.