Home / 7,022.16-9,689.64-3,997.34

Finding the Fourth Proportional to 7,022.16, 9,689.64 and 3,997.34

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Solution

The fourth proportional to 7,022.16, 9,689.64 and 3,997.34 is: 5,515.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,022.16 : 9,689.64 = 3,997.34 : x
  2. Step 2: Convert to fraction form
    7,022.16/9,689.64 = 3,997.34/x
  3. Step 3: Cross multiply
    7,022.16x = 9,689.64 × 3,997.34
  4. Step 4: Simplify right side
    7,022.16x = 38,732,785.56
  5. Step 5: Solve for x
    x = 38,732,785.56/7,022.16
  6. Step 6: Final answer
    x = 5,515.79

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.