Home / 2,214.57-3,322.68-981.10

Finding the Fourth Proportional to 2,214.57, 3,322.68 and 981.10

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Solution

The fourth proportional to 2,214.57, 3,322.68 and 981.10 is: 1,472.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,214.57 : 3,322.68 = 981.10 : x
  2. Step 2: Convert to fraction form
    2,214.57/3,322.68 = 981.10/x
  3. Step 3: Cross multiply
    2,214.57x = 3,322.68 × 981.10
  4. Step 4: Simplify right side
    2,214.57x = 3,259,881.35
  5. Step 5: Solve for x
    x = 3,259,881.35/2,214.57
  6. Step 6: Final answer
    x = 1,472.02

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.