Home / 3,153.62-4,342.14-2,680.58

Finding the Fourth Proportional to 3,153.62, 4,342.14 and 2,680.58

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Solution

The fourth proportional to 3,153.62, 4,342.14 and 2,680.58 is: 3,690.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,153.62 : 4,342.14 = 2,680.58 : x
  2. Step 2: Convert to fraction form
    3,153.62/4,342.14 = 2,680.58/x
  3. Step 3: Cross multiply
    3,153.62x = 4,342.14 × 2,680.58
  4. Step 4: Simplify right side
    3,153.62x = 11,639,453.64
  5. Step 5: Solve for x
    x = 11,639,453.64/3,153.62
  6. Step 6: Final answer
    x = 3,690.82

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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.