Home / 5,391.60-8,084.10-2,100.90

Finding the Fourth Proportional to 5,391.60, 8,084.10 and 2,100.90

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Solution

The fourth proportional to 5,391.60, 8,084.10 and 2,100.90 is: 3,150.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,391.60 : 8,084.10 = 2,100.90 : x
  2. Step 2: Convert to fraction form
    5,391.60/8,084.10 = 2,100.90/x
  3. Step 3: Cross multiply
    5,391.60x = 8,084.10 × 2,100.90
  4. Step 4: Simplify right side
    5,391.60x = 16,983,885.69
  5. Step 5: Solve for x
    x = 16,983,885.69/5,391.60
  6. Step 6: Final answer
    x = 3,150.06

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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.