Home / 5,680.30-8,520.45-4,222.30

Finding the Fourth Proportional to 5,680.30, 8,520.45 and 4,222.30

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Solution

The fourth proportional to 5,680.30, 8,520.45 and 4,222.30 is: 6,333.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,680.30 : 8,520.45 = 4,222.30 : x
  2. Step 2: Convert to fraction form
    5,680.30/8,520.45 = 4,222.30/x
  3. Step 3: Cross multiply
    5,680.30x = 8,520.45 × 4,222.30
  4. Step 4: Simplify right side
    5,680.30x = 35,975,896.04
  5. Step 5: Solve for x
    x = 35,975,896.04/5,680.30
  6. Step 6: Final answer
    x = 6,333.45

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Similar ratio
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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.