Home / 3,679.46-5,519.73-1,487.70

Finding the Fourth Proportional to 3,679.46, 5,519.73 and 1,487.70

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Solution

The fourth proportional to 3,679.46, 5,519.73 and 1,487.70 is: 2,231.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,679.46 : 5,519.73 = 1,487.70 : x
  2. Step 2: Convert to fraction form
    3,679.46/5,519.73 = 1,487.70/x
  3. Step 3: Cross multiply
    3,679.46x = 5,519.73 × 1,487.70
  4. Step 4: Simplify right side
    3,679.46x = 8,211,702.32
  5. Step 5: Solve for x
    x = 8,211,702.32/3,679.46
  6. Step 6: Final answer
    x = 2,231.77

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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.