Home / 5,387.50-8,084.30-2,100.18

Finding the Fourth Proportional to 5,387.50, 8,084.30 and 2,100.18

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Solution

The fourth proportional to 5,387.50, 8,084.30 and 2,100.18 is: 3,151.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,387.50 : 8,084.30 = 2,100.18 : x
  2. Step 2: Convert to fraction form
    5,387.50/8,084.30 = 2,100.18/x
  3. Step 3: Cross multiply
    5,387.50x = 8,084.30 × 2,100.18
  4. Step 4: Simplify right side
    5,387.50x = 16,978,485.17
  5. Step 5: Solve for x
    x = 16,978,485.17/5,387.50
  6. Step 6: Final answer
    x = 3,151.46

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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.