Home / 1,893.11-2,612.80-1,107.00

Finding the Fourth Proportional to 1,893.11, 2,612.80 and 1,107.00

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Solution

The fourth proportional to 1,893.11, 2,612.80 and 1,107.00 is: 1,527.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,893.11 : 2,612.80 = 1,107.00 : x
  2. Step 2: Convert to fraction form
    1,893.11/2,612.80 = 1,107.00/x
  3. Step 3: Cross multiply
    1,893.11x = 2,612.80 × 1,107.00
  4. Step 4: Simplify right side
    1,893.11x = 2,892,378.90
  5. Step 5: Solve for x
    x = 2,892,378.90/1,893.11
  6. Step 6: Final answer
    x = 1,527.85

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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.