Home / 6,480.20-9,720.98-1,800.22

Finding the Fourth Proportional to 6,480.20, 9,720.98 and 1,800.22

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Solution

The fourth proportional to 6,480.20, 9,720.98 and 1,800.22 is: 2,700.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,480.20 : 9,720.98 = 1,800.22 : x
  2. Step 2: Convert to fraction form
    6,480.20/9,720.98 = 1,800.22/x
  3. Step 3: Cross multiply
    6,480.20x = 9,720.98 × 1,800.22
  4. Step 4: Simplify right side
    6,480.20x = 17,499,902.62
  5. Step 5: Solve for x
    x = 17,499,902.62/6,480.20
  6. Step 6: Final answer
    x = 2,700.52

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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.