Home / 3,320.83-4,581.65-2,142.68

Finding the Fourth Proportional to 3,320.83, 4,581.65 and 2,142.68

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Solution

The fourth proportional to 3,320.83, 4,581.65 and 2,142.68 is: 2,956.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,320.83 : 4,581.65 = 2,142.68 : x
  2. Step 2: Convert to fraction form
    3,320.83/4,581.65 = 2,142.68/x
  3. Step 3: Cross multiply
    3,320.83x = 4,581.65 × 2,142.68
  4. Step 4: Simplify right side
    3,320.83x = 9,816,999.11
  5. Step 5: Solve for x
    x = 9,816,999.11/3,320.83
  6. Step 6: Final answer
    x = 2,956.19

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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.