Home / 10,285.91-15,429.77-2,890.43

Finding the Fourth Proportional to 10,285.91, 15,429.77 and 2,890.43

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Solution

The fourth proportional to 10,285.91, 15,429.77 and 2,890.43 is: 4,335.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,285.91 : 15,429.77 = 2,890.43 : x
  2. Step 2: Convert to fraction form
    10,285.91/15,429.77 = 2,890.43/x
  3. Step 3: Cross multiply
    10,285.91x = 15,429.77 × 2,890.43
  4. Step 4: Simplify right side
    10,285.91x = 44,598,655.65
  5. Step 5: Solve for x
    x = 44,598,655.65/10,285.91
  6. Step 6: Final answer
    x = 4,335.90

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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.