Home / 4,781.34-7,172.13-2,315.70

Finding the Fourth Proportional to 4,781.34, 7,172.13 and 2,315.70

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Solution

The fourth proportional to 4,781.34, 7,172.13 and 2,315.70 is: 3,473.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,781.34 : 7,172.13 = 2,315.70 : x
  2. Step 2: Convert to fraction form
    4,781.34/7,172.13 = 2,315.70/x
  3. Step 3: Cross multiply
    4,781.34x = 7,172.13 × 2,315.70
  4. Step 4: Simplify right side
    4,781.34x = 16,608,501.44
  5. Step 5: Solve for x
    x = 16,608,501.44/4,781.34
  6. Step 6: Final answer
    x = 3,473.61

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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.