Home / 2,038.62-2,813.31-1,107.12

Finding the Fourth Proportional to 2,038.62, 2,813.31 and 1,107.12

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Solution

The fourth proportional to 2,038.62, 2,813.31 and 1,107.12 is: 1,527.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,038.62 : 2,813.31 = 1,107.12 : x
  2. Step 2: Convert to fraction form
    2,038.62/2,813.31 = 1,107.12/x
  3. Step 3: Cross multiply
    2,038.62x = 2,813.31 × 1,107.12
  4. Step 4: Simplify right side
    2,038.62x = 3,114,671.77
  5. Step 5: Solve for x
    x = 3,114,671.77/2,038.62
  6. Step 6: Final answer
    x = 1,527.83

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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.