Home / 5,680.82-8,521.16-1,785.20

Finding the Fourth Proportional to 5,680.82, 8,521.16 and 1,785.20

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Solution

The fourth proportional to 5,680.82, 8,521.16 and 1,785.20 is: 2,677.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,680.82 : 8,521.16 = 1,785.20 : x
  2. Step 2: Convert to fraction form
    5,680.82/8,521.16 = 1,785.20/x
  3. Step 3: Cross multiply
    5,680.82x = 8,521.16 × 1,785.20
  4. Step 4: Simplify right side
    5,680.82x = 15,211,923.30
  5. Step 5: Solve for x
    x = 15,211,923.30/5,680.82
  6. Step 6: Final answer
    x = 2,677.77

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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.