Home / 7,690.77-11,536.71-2,760.45

Finding the Fourth Proportional to 7,690.77, 11,536.71 and 2,760.45

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Solution

The fourth proportional to 7,690.77, 11,536.71 and 2,760.45 is: 4,140.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,690.77 : 11,536.71 = 2,760.45 : x
  2. Step 2: Convert to fraction form
    7,690.77/11,536.71 = 2,760.45/x
  3. Step 3: Cross multiply
    7,690.77x = 11,536.71 × 2,760.45
  4. Step 4: Simplify right side
    7,690.77x = 31,846,511.12
  5. Step 5: Solve for x
    x = 31,846,511.12/7,690.77
  6. Step 6: Final answer
    x = 4,140.87

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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.