Home / 7,092.54-9,787.32-3,905.21

Finding the Fourth Proportional to 7,092.54, 9,787.32 and 3,905.21

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Solution

The fourth proportional to 7,092.54, 9,787.32 and 3,905.21 is: 5,388.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,092.54 : 9,787.32 = 3,905.21 : x
  2. Step 2: Convert to fraction form
    7,092.54/9,787.32 = 3,905.21/x
  3. Step 3: Cross multiply
    7,092.54x = 9,787.32 × 3,905.21
  4. Step 4: Simplify right side
    7,092.54x = 38,221,520.41
  5. Step 5: Solve for x
    x = 38,221,520.41/7,092.54
  6. Step 6: Final answer
    x = 5,388.98

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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.