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Finding the Fourth Proportional to 6,259.68, 9,384.60 and 3,138.18

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Solution

The fourth proportional to 6,259.68, 9,384.60 and 3,138.18 is: 4,704.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,259.68 : 9,384.60 = 3,138.18 : x
  2. Step 2: Convert to fraction form
    6,259.68/9,384.60 = 3,138.18/x
  3. Step 3: Cross multiply
    6,259.68x = 9,384.60 × 3,138.18
  4. Step 4: Simplify right side
    6,259.68x = 29,450,564.03
  5. Step 5: Solve for x
    x = 29,450,564.03/6,259.68
  6. Step 6: Final answer
    x = 4,704.80

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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.