Home / 2,113.60-3,170.34-880.24

Finding the Fourth Proportional to 2,113.60, 3,170.34 and 880.24

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Solution

The fourth proportional to 2,113.60, 3,170.34 and 880.24 is: 1,320.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,113.60 : 3,170.34 = 880.24 : x
  2. Step 2: Convert to fraction form
    2,113.60/3,170.34 = 880.24/x
  3. Step 3: Cross multiply
    2,113.60x = 3,170.34 × 880.24
  4. Step 4: Simplify right side
    2,113.60x = 2,790,660.08
  5. Step 5: Solve for x
    x = 2,790,660.08/2,113.60
  6. Step 6: Final answer
    x = 1,320.34

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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.