Home / 7,210.78-10,817.93-3,512.17

Finding the Fourth Proportional to 7,210.78, 10,817.93 and 3,512.17

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Solution

The fourth proportional to 7,210.78, 10,817.93 and 3,512.17 is: 5,269.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,210.78 : 10,817.93 = 3,512.17 : x
  2. Step 2: Convert to fraction form
    7,210.78/10,817.93 = 3,512.17/x
  3. Step 3: Cross multiply
    7,210.78x = 10,817.93 × 3,512.17
  4. Step 4: Simplify right side
    7,210.78x = 37,994,436.85
  5. Step 5: Solve for x
    x = 37,994,436.85/7,210.78
  6. Step 6: Final answer
    x = 5,269.11

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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.