Home / 927.03-1,390.51-277.75

Finding the Fourth Proportional to 927.03, 1,390.51 and 277.75

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Solution

The fourth proportional to 927.03, 1,390.51 and 277.75 is: 416.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    927.03 : 1,390.51 = 277.75 : x
  2. Step 2: Convert to fraction form
    927.03/1,390.51 = 277.75/x
  3. Step 3: Cross multiply
    927.03x = 1,390.51 × 277.75
  4. Step 4: Simplify right side
    927.03x = 386,214.15
  5. Step 5: Solve for x
    x = 386,214.15/927.03
  6. Step 6: Final answer
    x = 416.61

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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.