Home / 3,141.71-4,334.04-2,079.21

Finding the Fourth Proportional to 3,141.71, 4,334.04 and 2,079.21

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Solution

The fourth proportional to 3,141.71, 4,334.04 and 2,079.21 is: 2,868.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,141.71 : 4,334.04 = 2,079.21 : x
  2. Step 2: Convert to fraction form
    3,141.71/4,334.04 = 2,079.21/x
  3. Step 3: Cross multiply
    3,141.71x = 4,334.04 × 2,079.21
  4. Step 4: Simplify right side
    3,141.71x = 9,011,379.31
  5. Step 5: Solve for x
    x = 9,011,379.31/3,141.71
  6. Step 6: Final answer
    x = 2,868.31

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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.