Home / 2,331.78-3,214.17-2,285.70

Finding the Fourth Proportional to 2,331.78, 3,214.17 and 2,285.70

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Solution

The fourth proportional to 2,331.78, 3,214.17 and 2,285.70 is: 3,150.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,331.78 : 3,214.17 = 2,285.70 : x
  2. Step 2: Convert to fraction form
    2,331.78/3,214.17 = 2,285.70/x
  3. Step 3: Cross multiply
    2,331.78x = 3,214.17 × 2,285.70
  4. Step 4: Simplify right side
    2,331.78x = 7,346,628.37
  5. Step 5: Solve for x
    x = 7,346,628.37/2,331.78
  6. Step 6: Final answer
    x = 3,150.65

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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.