Home / 3,013.49-4,519.56-822.40

Finding the Fourth Proportional to 3,013.49, 4,519.56 and 822.40

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Solution

The fourth proportional to 3,013.49, 4,519.56 and 822.40 is: 1,233.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,013.49 : 4,519.56 = 822.40 : x
  2. Step 2: Convert to fraction form
    3,013.49/4,519.56 = 822.40/x
  3. Step 3: Cross multiply
    3,013.49x = 4,519.56 × 822.40
  4. Step 4: Simplify right side
    3,013.49x = 3,716,874.85
  5. Step 5: Solve for x
    x = 3,716,874.85/3,013.49
  6. Step 6: Final answer
    x = 1,233.41

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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.