Home / 6,270.30-9,405.45-3,159.90

Finding the Fourth Proportional to 6,270.30, 9,405.45 and 3,159.90

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Solution

The fourth proportional to 6,270.30, 9,405.45 and 3,159.90 is: 4,739.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,270.30 : 9,405.45 = 3,159.90 : x
  2. Step 2: Convert to fraction form
    6,270.30/9,405.45 = 3,159.90/x
  3. Step 3: Cross multiply
    6,270.30x = 9,405.45 × 3,159.90
  4. Step 4: Simplify right side
    6,270.30x = 29,720,281.46
  5. Step 5: Solve for x
    x = 29,720,281.46/6,270.30
  6. Step 6: Final answer
    x = 4,739.85

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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.