Home / 6,466.20-9,699.30-2,086.80

Finding the Fourth Proportional to 6,466.20, 9,699.30 and 2,086.80

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Solution

The fourth proportional to 6,466.20, 9,699.30 and 2,086.80 is: 3,130.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,466.20 : 9,699.30 = 2,086.80 : x
  2. Step 2: Convert to fraction form
    6,466.20/9,699.30 = 2,086.80/x
  3. Step 3: Cross multiply
    6,466.20x = 9,699.30 × 2,086.80
  4. Step 4: Simplify right side
    6,466.20x = 20,240,499.24
  5. Step 5: Solve for x
    x = 20,240,499.24/6,466.20
  6. Step 6: Final answer
    x = 3,130.20

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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.