Home / 7,137.40-10,702.44-2,756.12

Finding the Fourth Proportional to 7,137.40, 10,702.44 and 2,756.12

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Solution

The fourth proportional to 7,137.40, 10,702.44 and 2,756.12 is: 4,132.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,137.40 : 10,702.44 = 2,756.12 : x
  2. Step 2: Convert to fraction form
    7,137.40/10,702.44 = 2,756.12/x
  3. Step 3: Cross multiply
    7,137.40x = 10,702.44 × 2,756.12
  4. Step 4: Simplify right side
    7,137.40x = 29,497,208.93
  5. Step 5: Solve for x
    x = 29,497,208.93/7,137.40
  6. Step 6: Final answer
    x = 4,132.77

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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.