Home / 7,128.84-10,683.14-3,376.62

Finding the Fourth Proportional to 7,128.84, 10,683.14 and 3,376.62

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Solution

The fourth proportional to 7,128.84, 10,683.14 and 3,376.62 is: 5,060.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,128.84 : 10,683.14 = 3,376.62 : x
  2. Step 2: Convert to fraction form
    7,128.84/10,683.14 = 3,376.62/x
  3. Step 3: Cross multiply
    7,128.84x = 10,683.14 × 3,376.62
  4. Step 4: Simplify right side
    7,128.84x = 36,072,887.30
  5. Step 5: Solve for x
    x = 36,072,887.30/7,128.84
  6. Step 6: Final answer
    x = 5,060.13

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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.