Home / 2,147.32-3,217.26-1,688.04

Finding the Fourth Proportional to 2,147.32, 3,217.26 and 1,688.04

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Solution

The fourth proportional to 2,147.32, 3,217.26 and 1,688.04 is: 2,529.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,147.32 : 3,217.26 = 1,688.04 : x
  2. Step 2: Convert to fraction form
    2,147.32/3,217.26 = 1,688.04/x
  3. Step 3: Cross multiply
    2,147.32x = 3,217.26 × 1,688.04
  4. Step 4: Simplify right side
    2,147.32x = 5,430,863.57
  5. Step 5: Solve for x
    x = 5,430,863.57/2,147.32
  6. Step 6: Final answer
    x = 2,529.14

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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.