Home / 2,021.60-2,789.38-1,182.14

Finding the Fourth Proportional to 2,021.60, 2,789.38 and 1,182.14

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Solution

The fourth proportional to 2,021.60, 2,789.38 and 1,182.14 is: 1,631.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,021.60 : 2,789.38 = 1,182.14 : x
  2. Step 2: Convert to fraction form
    2,021.60/2,789.38 = 1,182.14/x
  3. Step 3: Cross multiply
    2,021.60x = 2,789.38 × 1,182.14
  4. Step 4: Simplify right side
    2,021.60x = 3,297,423.73
  5. Step 5: Solve for x
    x = 3,297,423.73/2,021.60
  6. Step 6: Final answer
    x = 1,631.10

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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.