Home / 5,669.49-7,821.64-3,279.02

Finding the Fourth Proportional to 5,669.49, 7,821.64 and 3,279.02

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Solution

The fourth proportional to 5,669.49, 7,821.64 and 3,279.02 is: 4,523.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,669.49 : 7,821.64 = 3,279.02 : x
  2. Step 2: Convert to fraction form
    5,669.49/7,821.64 = 3,279.02/x
  3. Step 3: Cross multiply
    5,669.49x = 7,821.64 × 3,279.02
  4. Step 4: Simplify right side
    5,669.49x = 25,647,313.99
  5. Step 5: Solve for x
    x = 25,647,313.99/5,669.49
  6. Step 6: Final answer
    x = 4,523.74

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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.