Home / 3,521.84-5,279.88-1,329.32

Finding the Fourth Proportional to 3,521.84, 5,279.88 and 1,329.32

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Solution

The fourth proportional to 3,521.84, 5,279.88 and 1,329.32 is: 1,992.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,521.84 : 5,279.88 = 1,329.32 : x
  2. Step 2: Convert to fraction form
    3,521.84/5,279.88 = 1,329.32/x
  3. Step 3: Cross multiply
    3,521.84x = 5,279.88 × 1,329.32
  4. Step 4: Simplify right side
    3,521.84x = 7,018,650.08
  5. Step 5: Solve for x
    x = 7,018,650.08/3,521.84
  6. Step 6: Final answer
    x = 1,992.89

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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.