Home / 2,171.24-3,260.10-1,247.84

Finding the Fourth Proportional to 2,171.24, 3,260.10 and 1,247.84

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Solution

The fourth proportional to 2,171.24, 3,260.10 and 1,247.84 is: 1,873.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,171.24 : 3,260.10 = 1,247.84 : x
  2. Step 2: Convert to fraction form
    2,171.24/3,260.10 = 1,247.84/x
  3. Step 3: Cross multiply
    2,171.24x = 3,260.10 × 1,247.84
  4. Step 4: Simplify right side
    2,171.24x = 4,068,083.18
  5. Step 5: Solve for x
    x = 4,068,083.18/2,171.24
  6. Step 6: Final answer
    x = 1,873.62

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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.