Home / 5,680.30-8,520.84-1,983.46

Finding the Fourth Proportional to 5,680.30, 8,520.84 and 1,983.46

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Solution

The fourth proportional to 5,680.30, 8,520.84 and 1,983.46 is: 2,975.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,680.30 : 8,520.84 = 1,983.46 : x
  2. Step 2: Convert to fraction form
    5,680.30/8,520.84 = 1,983.46/x
  3. Step 3: Cross multiply
    5,680.30x = 8,520.84 × 1,983.46
  4. Step 4: Simplify right side
    5,680.30x = 16,900,745.31
  5. Step 5: Solve for x
    x = 16,900,745.31/5,680.30
  6. Step 6: Final answer
    x = 2,975.33

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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.