Home / 3,963.98-5,470.32-2,195.69

Finding the Fourth Proportional to 3,963.98, 5,470.32 and 2,195.69

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Solution

The fourth proportional to 3,963.98, 5,470.32 and 2,195.69 is: 3,030.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,963.98 : 5,470.32 = 2,195.69 : x
  2. Step 2: Convert to fraction form
    3,963.98/5,470.32 = 2,195.69/x
  3. Step 3: Cross multiply
    3,963.98x = 5,470.32 × 2,195.69
  4. Step 4: Simplify right side
    3,963.98x = 12,011,099.57
  5. Step 5: Solve for x
    x = 12,011,099.57/3,963.98
  6. Step 6: Final answer
    x = 3,030.06

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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.