Home / 2,132.90-2,945.22-2,037.78

Finding the Fourth Proportional to 2,132.90, 2,945.22 and 2,037.78

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Solution

The fourth proportional to 2,132.90, 2,945.22 and 2,037.78 is: 2,813.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,132.90 : 2,945.22 = 2,037.78 : x
  2. Step 2: Convert to fraction form
    2,132.90/2,945.22 = 2,037.78/x
  3. Step 3: Cross multiply
    2,132.90x = 2,945.22 × 2,037.78
  4. Step 4: Simplify right side
    2,132.90x = 6,001,695.69
  5. Step 5: Solve for x
    x = 6,001,695.69/2,132.90
  6. Step 6: Final answer
    x = 2,813.87

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.