Home / 1,906.60-2,631.23-1,067.40

Finding the Fourth Proportional to 1,906.60, 2,631.23 and 1,067.40

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Solution

The fourth proportional to 1,906.60, 2,631.23 and 1,067.40 is: 1,473.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,906.60 : 2,631.23 = 1,067.40 : x
  2. Step 2: Convert to fraction form
    1,906.60/2,631.23 = 1,067.40/x
  3. Step 3: Cross multiply
    1,906.60x = 2,631.23 × 1,067.40
  4. Step 4: Simplify right side
    1,906.60x = 2,808,574.90
  5. Step 5: Solve for x
    x = 2,808,574.90/1,906.60
  6. Step 6: Final answer
    x = 1,473.08

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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.