Home / 3,553.74-5,330.68-1,214.28

Finding the Fourth Proportional to 3,553.74, 5,330.68 and 1,214.28

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Solution

The fourth proportional to 3,553.74, 5,330.68 and 1,214.28 is: 1,821.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,553.74 : 5,330.68 = 1,214.28 : x
  2. Step 2: Convert to fraction form
    3,553.74/5,330.68 = 1,214.28/x
  3. Step 3: Cross multiply
    3,553.74x = 5,330.68 × 1,214.28
  4. Step 4: Simplify right side
    3,553.74x = 6,472,938.11
  5. Step 5: Solve for x
    x = 6,472,938.11/3,553.74
  6. Step 6: Final answer
    x = 1,821.44

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1.5x scale

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.