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Finding the Fourth Proportional to 7,137.44, 10,702.24 and 2,205.72

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Solution

The fourth proportional to 7,137.44, 10,702.24 and 2,205.72 is: 3,307.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,137.44 : 10,702.24 = 2,205.72 : x
  2. Step 2: Convert to fraction form
    7,137.44/10,702.24 = 2,205.72/x
  3. Step 3: Cross multiply
    7,137.44x = 10,702.24 × 2,205.72
  4. Step 4: Simplify right side
    7,137.44x = 23,606,144.81
  5. Step 5: Solve for x
    x = 23,606,144.81/7,137.44
  6. Step 6: Final answer
    x = 3,307.37

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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.