Home / 7,315.67-10,975.52-2,385.61

Finding the Fourth Proportional to 7,315.67, 10,975.52 and 2,385.61

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Solution

The fourth proportional to 7,315.67, 10,975.52 and 2,385.61 is: 3,579.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,315.67 : 10,975.52 = 2,385.61 : x
  2. Step 2: Convert to fraction form
    7,315.67/10,975.52 = 2,385.61/x
  3. Step 3: Cross multiply
    7,315.67x = 10,975.52 × 2,385.61
  4. Step 4: Simplify right side
    7,315.67x = 26,183,288.79
  5. Step 5: Solve for x
    x = 26,183,288.79/7,315.67
  6. Step 6: Final answer
    x = 3,579.07

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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.