Home / 3,321.10-4,582.28-2,140.76

Finding the Fourth Proportional to 3,321.10, 4,582.28 and 2,140.76

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Solution

The fourth proportional to 3,321.10, 4,582.28 and 2,140.76 is: 2,953.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,321.10 : 4,582.28 = 2,140.76 : x
  2. Step 2: Convert to fraction form
    3,321.10/4,582.28 = 2,140.76/x
  3. Step 3: Cross multiply
    3,321.10x = 4,582.28 × 2,140.76
  4. Step 4: Simplify right side
    3,321.10x = 9,809,561.73
  5. Step 5: Solve for x
    x = 9,809,561.73/3,321.10
  6. Step 6: Final answer
    x = 2,953.71

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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.