Home / 5,207.50-7,812.33-2,129.50

Finding the Fourth Proportional to 5,207.50, 7,812.33 and 2,129.50

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Solution

The fourth proportional to 5,207.50, 7,812.33 and 2,129.50 is: 3,194.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,207.50 : 7,812.33 = 2,129.50 : x
  2. Step 2: Convert to fraction form
    5,207.50/7,812.33 = 2,129.50/x
  3. Step 3: Cross multiply
    5,207.50x = 7,812.33 × 2,129.50
  4. Step 4: Simplify right side
    5,207.50x = 16,636,356.74
  5. Step 5: Solve for x
    x = 16,636,356.74/5,207.50
  6. Step 6: Final answer
    x = 3,194.69

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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.