Home / 5,679.53-8,518.69-1,981.83

Finding the Fourth Proportional to 5,679.53, 8,518.69 and 1,981.83

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Solution

The fourth proportional to 5,679.53, 8,518.69 and 1,981.83 is: 2,972.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,679.53 : 8,518.69 = 1,981.83 : x
  2. Step 2: Convert to fraction form
    5,679.53/8,518.69 = 1,981.83/x
  3. Step 3: Cross multiply
    5,679.53x = 8,518.69 × 1,981.83
  4. Step 4: Simplify right side
    5,679.53x = 16,882,586.92
  5. Step 5: Solve for x
    x = 16,882,586.92/5,679.53
  6. Step 6: Final answer
    x = 2,972.53

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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.