Home / 2,330.92-3,216.90-2,120.68

Finding the Fourth Proportional to 2,330.92, 3,216.90 and 2,120.68

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Solution

The fourth proportional to 2,330.92, 3,216.90 and 2,120.68 is: 2,926.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,330.92 : 3,216.90 = 2,120.68 : x
  2. Step 2: Convert to fraction form
    2,330.92/3,216.90 = 2,120.68/x
  3. Step 3: Cross multiply
    2,330.92x = 3,216.90 × 2,120.68
  4. Step 4: Simplify right side
    2,330.92x = 6,822,015.49
  5. Step 5: Solve for x
    x = 6,822,015.49/2,330.92
  6. Step 6: Final answer
    x = 2,926.75

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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.