Home / 7,022.44-9,691.48-4,039.21

Finding the Fourth Proportional to 7,022.44, 9,691.48 and 4,039.21

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Solution

The fourth proportional to 7,022.44, 9,691.48 and 4,039.21 is: 5,574.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,022.44 : 9,691.48 = 4,039.21 : x
  2. Step 2: Convert to fraction form
    7,022.44/9,691.48 = 4,039.21/x
  3. Step 3: Cross multiply
    7,022.44x = 9,691.48 × 4,039.21
  4. Step 4: Simplify right side
    7,022.44x = 39,145,912.83
  5. Step 5: Solve for x
    x = 39,145,912.83/7,022.44
  6. Step 6: Final answer
    x = 5,574.40

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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.