Home / 3,468.20-4,787.14-2,143.80

Finding the Fourth Proportional to 3,468.20, 4,787.14 and 2,143.80

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Solution

The fourth proportional to 3,468.20, 4,787.14 and 2,143.80 is: 2,959.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,468.20 : 4,787.14 = 2,143.80 : x
  2. Step 2: Convert to fraction form
    3,468.20/4,787.14 = 2,143.80/x
  3. Step 3: Cross multiply
    3,468.20x = 4,787.14 × 2,143.80
  4. Step 4: Simplify right side
    3,468.20x = 10,262,670.73
  5. Step 5: Solve for x
    x = 10,262,670.73/3,468.20
  6. Step 6: Final answer
    x = 2,959.08

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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.