Home / 6,369.20-9,553.80-1,987.02

Finding the Fourth Proportional to 6,369.20, 9,553.80 and 1,987.02

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Solution

The fourth proportional to 6,369.20, 9,553.80 and 1,987.02 is: 2,980.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,369.20 : 9,553.80 = 1,987.02 : x
  2. Step 2: Convert to fraction form
    6,369.20/9,553.80 = 1,987.02/x
  3. Step 3: Cross multiply
    6,369.20x = 9,553.80 × 1,987.02
  4. Step 4: Simplify right side
    6,369.20x = 18,983,591.68
  5. Step 5: Solve for x
    x = 18,983,591.68/6,369.20
  6. Step 6: Final answer
    x = 2,980.53

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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.