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Finding the Fourth Proportional to 6,138, 8,470.53 and 3,343.50

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Solution

The fourth proportional to 6,138, 8,470.53 and 3,343.50 is: 4,614.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,138 : 8,470.53 = 3,343.50 : x
  2. Step 2: Convert to fraction form
    6,138/8,470.53 = 3,343.50/x
  3. Step 3: Cross multiply
    6,138x = 8,470.53 × 3,343.50
  4. Step 4: Simplify right side
    6,138x = 28,321,217.06
  5. Step 5: Solve for x
    x = 28,321,217.06/6,138
  6. Step 6: Final answer
    x = 4,614.08

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.