Home / 2,958.42-4,084.11-1,963.20

Finding the Fourth Proportional to 2,958.42, 4,084.11 and 1,963.20

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Solution

The fourth proportional to 2,958.42, 4,084.11 and 1,963.20 is: 2,710.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,958.42 : 4,084.11 = 1,963.20 : x
  2. Step 2: Convert to fraction form
    2,958.42/4,084.11 = 1,963.20/x
  3. Step 3: Cross multiply
    2,958.42x = 4,084.11 × 1,963.20
  4. Step 4: Simplify right side
    2,958.42x = 8,017,924.75
  5. Step 5: Solve for x
    x = 8,017,924.75/2,958.42
  6. Step 6: Final answer
    x = 2,710.21

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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.