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Finding the Fourth Proportional to 5,411.65, 8,126.74 and 3,343.92

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Solution

The fourth proportional to 5,411.65, 8,126.74 and 3,343.92 is: 5,021.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,411.65 : 8,126.74 = 3,343.92 : x
  2. Step 2: Convert to fraction form
    5,411.65/8,126.74 = 3,343.92/x
  3. Step 3: Cross multiply
    5,411.65x = 8,126.74 × 3,343.92
  4. Step 4: Simplify right side
    5,411.65x = 27,175,151.70
  5. Step 5: Solve for x
    x = 27,175,151.70/5,411.65
  6. Step 6: Final answer
    x = 5,021.60

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1.5x scale

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.