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Finding the Fourth Proportional to 6,279.57, 9,428.01 and 4,072.22

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Solution

The fourth proportional to 6,279.57, 9,428.01 and 4,072.22 is: 6,113.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,279.57 : 9,428.01 = 4,072.22 : x
  2. Step 2: Convert to fraction form
    6,279.57/9,428.01 = 4,072.22/x
  3. Step 3: Cross multiply
    6,279.57x = 9,428.01 × 4,072.22
  4. Step 4: Simplify right side
    6,279.57x = 38,392,883.74
  5. Step 5: Solve for x
    x = 38,392,883.74/6,279.57
  6. Step 6: Final answer
    x = 6,113.94

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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.