Home / 3,171.16-4,376.46-2,107.03

Finding the Fourth Proportional to 3,171.16, 4,376.46 and 2,107.03

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Solution

The fourth proportional to 3,171.16, 4,376.46 and 2,107.03 is: 2,907.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,171.16 : 4,376.46 = 2,107.03 : x
  2. Step 2: Convert to fraction form
    3,171.16/4,376.46 = 2,107.03/x
  3. Step 3: Cross multiply
    3,171.16x = 4,376.46 × 2,107.03
  4. Step 4: Simplify right side
    3,171.16x = 9,221,332.51
  5. Step 5: Solve for x
    x = 9,221,332.51/3,171.16
  6. Step 6: Final answer
    x = 2,907.87

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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.