Home / 7,137.90-10,708.77-2,976.52

Finding the Fourth Proportional to 7,137.90, 10,708.77 and 2,976.52

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Solution

The fourth proportional to 7,137.90, 10,708.77 and 2,976.52 is: 4,465.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,137.90 : 10,708.77 = 2,976.52 : x
  2. Step 2: Convert to fraction form
    7,137.90/10,708.77 = 2,976.52/x
  3. Step 3: Cross multiply
    7,137.90x = 10,708.77 × 2,976.52
  4. Step 4: Simplify right side
    7,137.90x = 31,874,868.08
  5. Step 5: Solve for x
    x = 31,874,868.08/7,137.90
  6. Step 6: Final answer
    x = 4,465.58

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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.