Home / 1,107.39-1,528.23-610.05

Finding the Fourth Proportional to 1,107.39, 1,528.23 and 610.05

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Solution

The fourth proportional to 1,107.39, 1,528.23 and 610.05 is: 841.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,107.39 : 1,528.23 = 610.05 : x
  2. Step 2: Convert to fraction form
    1,107.39/1,528.23 = 610.05/x
  3. Step 3: Cross multiply
    1,107.39x = 1,528.23 × 610.05
  4. Step 4: Simplify right side
    1,107.39x = 932,304.73
  5. Step 5: Solve for x
    x = 932,304.73/1,107.39
  6. Step 6: Final answer
    x = 841.89

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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.