Home / 3,521.32-5,279.58-1,786.60

Finding the Fourth Proportional to 3,521.32, 5,279.58 and 1,786.60

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Solution

The fourth proportional to 3,521.32, 5,279.58 and 1,786.60 is: 2,678.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,521.32 : 5,279.58 = 1,786.60 : x
  2. Step 2: Convert to fraction form
    3,521.32/5,279.58 = 1,786.60/x
  3. Step 3: Cross multiply
    3,521.32x = 5,279.58 × 1,786.60
  4. Step 4: Simplify right side
    3,521.32x = 9,432,497.63
  5. Step 5: Solve for x
    x = 9,432,497.63/3,521.32
  6. Step 6: Final answer
    x = 2,678.68

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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.