Home / 3,410.60-5,106.79-2,171.30

Finding the Fourth Proportional to 3,410.60, 5,106.79 and 2,171.30

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Solution

The fourth proportional to 3,410.60, 5,106.79 and 2,171.30 is: 3,251.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,410.60 : 5,106.79 = 2,171.30 : x
  2. Step 2: Convert to fraction form
    3,410.60/5,106.79 = 2,171.30/x
  3. Step 3: Cross multiply
    3,410.60x = 5,106.79 × 2,171.30
  4. Step 4: Simplify right side
    3,410.60x = 11,088,362.27
  5. Step 5: Solve for x
    x = 11,088,362.27/3,410.60
  6. Step 6: Final answer
    x = 3,251.15

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.