Home / 7,689.36-11,530.62-2,757.72

Finding the Fourth Proportional to 7,689.36, 11,530.62 and 2,757.72

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Solution

The fourth proportional to 7,689.36, 11,530.62 and 2,757.72 is: 4,135.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,689.36 : 11,530.62 = 2,757.72 : x
  2. Step 2: Convert to fraction form
    7,689.36/11,530.62 = 2,757.72/x
  3. Step 3: Cross multiply
    7,689.36x = 11,530.62 × 2,757.72
  4. Step 4: Simplify right side
    7,689.36x = 31,798,221.39
  5. Step 5: Solve for x
    x = 31,798,221.39/7,689.36
  6. Step 6: Final answer
    x = 4,135.35

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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.