Home / 8,285.08-12,429.78-3,091

Finding the Fourth Proportional to 8,285.08, 12,429.78 and 3,091

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Solution

The fourth proportional to 8,285.08, 12,429.78 and 3,091 is: 4,637.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,285.08 : 12,429.78 = 3,091 : x
  2. Step 2: Convert to fraction form
    8,285.08/12,429.78 = 3,091/x
  3. Step 3: Cross multiply
    8,285.08x = 12,429.78 × 3,091
  4. Step 4: Simplify right side
    8,285.08x = 38,420,449.98
  5. Step 5: Solve for x
    x = 38,420,449.98/8,285.08
  6. Step 6: Final answer
    x = 4,637.31

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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.