Home / 5,680.68-8,518.95-1,982.22

Finding the Fourth Proportional to 5,680.68, 8,518.95 and 1,982.22

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Solution

The fourth proportional to 5,680.68, 8,518.95 and 1,982.22 is: 2,972.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,680.68 : 8,518.95 = 1,982.22 : x
  2. Step 2: Convert to fraction form
    5,680.68/8,518.95 = 1,982.22/x
  3. Step 3: Cross multiply
    5,680.68x = 8,518.95 × 1,982.22
  4. Step 4: Simplify right side
    5,680.68x = 16,886,433.07
  5. Step 5: Solve for x
    x = 16,886,433.07/5,680.68
  6. Step 6: Final answer
    x = 2,972.61

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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.