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Finding the Fourth Proportional to 2,827.25, 4,241.00 and 775.25

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Solution

The fourth proportional to 2,827.25, 4,241.00 and 775.25 is: 1,162.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,827.25 : 4,241.00 = 775.25 : x
  2. Step 2: Convert to fraction form
    2,827.25/4,241.00 = 775.25/x
  3. Step 3: Cross multiply
    2,827.25x = 4,241.00 × 775.25
  4. Step 4: Simplify right side
    2,827.25x = 3,287,831.37
  5. Step 5: Solve for x
    x = 3,287,831.37/2,827.25
  6. Step 6: Final answer
    x = 1,162.91

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1.5x scale

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.