Home / 2,928.25-4,392.28-848.31

Finding the Fourth Proportional to 2,928.25, 4,392.28 and 848.31

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Solution

The fourth proportional to 2,928.25, 4,392.28 and 848.31 is: 1,272.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,928.25 : 4,392.28 = 848.31 : x
  2. Step 2: Convert to fraction form
    2,928.25/4,392.28 = 848.31/x
  3. Step 3: Cross multiply
    2,928.25x = 4,392.28 × 848.31
  4. Step 4: Simplify right side
    2,928.25x = 3,726,015.05
  5. Step 5: Solve for x
    x = 3,726,015.05/2,928.25
  6. Step 6: Final answer
    x = 1,272.44

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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.