Home / 1,369.07-1,891.96-1,036.92

Finding the Fourth Proportional to 1,369.07, 1,891.96 and 1,036.92

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Solution

The fourth proportional to 1,369.07, 1,891.96 and 1,036.92 is: 1,432.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,369.07 : 1,891.96 = 1,036.92 : x
  2. Step 2: Convert to fraction form
    1,369.07/1,891.96 = 1,036.92/x
  3. Step 3: Cross multiply
    1,369.07x = 1,891.96 × 1,036.92
  4. Step 4: Simplify right side
    1,369.07x = 1,961,805.02
  5. Step 5: Solve for x
    x = 1,961,805.02/1,369.07
  6. Step 6: Final answer
    x = 1,432.95

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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.