Home / 1,269.61-1,904.25-539.36

Finding the Fourth Proportional to 1,269.61, 1,904.25 and 539.36

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Solution

The fourth proportional to 1,269.61, 1,904.25 and 539.36 is: 808.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,269.61 : 1,904.25 = 539.36 : x
  2. Step 2: Convert to fraction form
    1,269.61/1,904.25 = 539.36/x
  3. Step 3: Cross multiply
    1,269.61x = 1,904.25 × 539.36
  4. Step 4: Simplify right side
    1,269.61x = 1,027,076.28
  5. Step 5: Solve for x
    x = 1,027,076.28/1,269.61
  6. Step 6: Final answer
    x = 808.97

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.