Home / 1,893.32-2,612.79-1,107.20

Finding the Fourth Proportional to 1,893.32, 2,612.79 and 1,107.20

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Solution

The fourth proportional to 1,893.32, 2,612.79 and 1,107.20 is: 1,527.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,893.32 : 2,612.79 = 1,107.20 : x
  2. Step 2: Convert to fraction form
    1,893.32/2,612.79 = 1,107.20/x
  3. Step 3: Cross multiply
    1,893.32x = 2,612.79 × 1,107.20
  4. Step 4: Simplify right side
    1,893.32x = 2,892,881.09
  5. Step 5: Solve for x
    x = 2,892,881.09/1,893.32
  6. Step 6: Final answer
    x = 1,527.94

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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.