Home / 8,285.45-12,430.04-2,739.38

Finding the Fourth Proportional to 8,285.45, 12,430.04 and 2,739.38

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Solution

The fourth proportional to 8,285.45, 12,430.04 and 2,739.38 is: 4,109.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,285.45 : 12,430.04 = 2,739.38 : x
  2. Step 2: Convert to fraction form
    8,285.45/12,430.04 = 2,739.38/x
  3. Step 3: Cross multiply
    8,285.45x = 12,430.04 × 2,739.38
  4. Step 4: Simplify right side
    8,285.45x = 34,050,527.13
  5. Step 5: Solve for x
    x = 34,050,527.13/8,285.45
  6. Step 6: Final answer
    x = 4,109.68

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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.