Home / 2,102.40-3,150.38-1,059.49

Finding the Fourth Proportional to 2,102.40, 3,150.38 and 1,059.49

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Solution

The fourth proportional to 2,102.40, 3,150.38 and 1,059.49 is: 1,587.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,102.40 : 3,150.38 = 1,059.49 : x
  2. Step 2: Convert to fraction form
    2,102.40/3,150.38 = 1,059.49/x
  3. Step 3: Cross multiply
    2,102.40x = 3,150.38 × 1,059.49
  4. Step 4: Simplify right side
    2,102.40x = 3,337,790.88
  5. Step 5: Solve for x
    x = 3,337,790.88/2,102.40
  6. Step 6: Final answer
    x = 1,587.61

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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.