Home / 1,892.97-2,612.32-1,107.47

Finding the Fourth Proportional to 1,892.97, 2,612.32 and 1,107.47

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Solution

The fourth proportional to 1,892.97, 2,612.32 and 1,107.47 is: 1,528.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,892.97 : 2,612.32 = 1,107.47 : x
  2. Step 2: Convert to fraction form
    1,892.97/2,612.32 = 1,107.47/x
  3. Step 3: Cross multiply
    1,892.97x = 2,612.32 × 1,107.47
  4. Step 4: Simplify right side
    1,892.97x = 2,893,069.79
  5. Step 5: Solve for x
    x = 2,893,069.79/1,892.97
  6. Step 6: Final answer
    x = 1,528.32

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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.