Home / 4,192.62-5,787.39-3,147.70

Finding the Fourth Proportional to 4,192.62, 5,787.39 and 3,147.70

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Solution

The fourth proportional to 4,192.62, 5,787.39 and 3,147.70 is: 4,345.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,192.62 : 5,787.39 = 3,147.70 : x
  2. Step 2: Convert to fraction form
    4,192.62/5,787.39 = 3,147.70/x
  3. Step 3: Cross multiply
    4,192.62x = 5,787.39 × 3,147.70
  4. Step 4: Simplify right side
    4,192.62x = 18,216,967.50
  5. Step 5: Solve for x
    x = 18,216,967.50/4,192.62
  6. Step 6: Final answer
    x = 4,345.01

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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.