Home / 7,021.66-9,689.88-4,037.56

Finding the Fourth Proportional to 7,021.66, 9,689.88 and 4,037.56

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Solution

The fourth proportional to 7,021.66, 9,689.88 and 4,037.56 is: 5,571.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,021.66 : 9,689.88 = 4,037.56 : x
  2. Step 2: Convert to fraction form
    7,021.66/9,689.88 = 4,037.56/x
  3. Step 3: Cross multiply
    7,021.66x = 9,689.88 × 4,037.56
  4. Step 4: Simplify right side
    7,021.66x = 39,123,471.89
  5. Step 5: Solve for x
    x = 39,123,471.89/7,021.66
  6. Step 6: Final answer
    x = 5,571.83

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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.