Home / 7,085.70-10,623.99-3,387.85

Finding the Fourth Proportional to 7,085.70, 10,623.99 and 3,387.85

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Solution

The fourth proportional to 7,085.70, 10,623.99 and 3,387.85 is: 5,079.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,085.70 : 10,623.99 = 3,387.85 : x
  2. Step 2: Convert to fraction form
    7,085.70/10,623.99 = 3,387.85/x
  3. Step 3: Cross multiply
    7,085.70x = 10,623.99 × 3,387.85
  4. Step 4: Simplify right side
    7,085.70x = 35,992,484.52
  5. Step 5: Solve for x
    x = 35,992,484.52/7,085.70
  6. Step 6: Final answer
    x = 5,079.59

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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.