Home / 5,787.75-7,983.56-3,428.31

Finding the Fourth Proportional to 5,787.75, 7,983.56 and 3,428.31

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Solution

The fourth proportional to 5,787.75, 7,983.56 and 3,428.31 is: 4,728.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,787.75 : 7,983.56 = 3,428.31 : x
  2. Step 2: Convert to fraction form
    5,787.75/7,983.56 = 3,428.31/x
  3. Step 3: Cross multiply
    5,787.75x = 7,983.56 × 3,428.31
  4. Step 4: Simplify right side
    5,787.75x = 27,370,101.44
  5. Step 5: Solve for x
    x = 27,370,101.44/5,787.75
  6. Step 6: Final answer
    x = 4,728.97

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1.5x scale

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.