Home / 6,279.87-9,419.81-3,681.39

Finding the Fourth Proportional to 6,279.87, 9,419.81 and 3,681.39

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Solution

The fourth proportional to 6,279.87, 9,419.81 and 3,681.39 is: 5,522.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,279.87 : 9,419.81 = 3,681.39 : x
  2. Step 2: Convert to fraction form
    6,279.87/9,419.81 = 3,681.39/x
  3. Step 3: Cross multiply
    6,279.87x = 9,419.81 × 3,681.39
  4. Step 4: Simplify right side
    6,279.87x = 34,677,975.93
  5. Step 5: Solve for x
    x = 34,677,975.93/6,279.87
  6. Step 6: Final answer
    x = 5,522.09

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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.