Home / 1,908.90-2,863.29-1,134.21

Finding the Fourth Proportional to 1,908.90, 2,863.29 and 1,134.21

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Solution

The fourth proportional to 1,908.90, 2,863.29 and 1,134.21 is: 1,701.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,908.90 : 2,863.29 = 1,134.21 : x
  2. Step 2: Convert to fraction form
    1,908.90/2,863.29 = 1,134.21/x
  3. Step 3: Cross multiply
    1,908.90x = 2,863.29 × 1,134.21
  4. Step 4: Simplify right side
    1,908.90x = 3,247,572.15
  5. Step 5: Solve for x
    x = 3,247,572.15/1,908.90
  6. Step 6: Final answer
    x = 1,701.28

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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.