Home / 7,021.14-9,687.42-4,037.82

Finding the Fourth Proportional to 7,021.14, 9,687.42 and 4,037.82

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Solution

The fourth proportional to 7,021.14, 9,687.42 and 4,037.82 is: 5,571.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,021.14 : 9,687.42 = 4,037.82 : x
  2. Step 2: Convert to fraction form
    7,021.14/9,687.42 = 4,037.82/x
  3. Step 3: Cross multiply
    7,021.14x = 9,687.42 × 4,037.82
  4. Step 4: Simplify right side
    7,021.14x = 39,116,058.22
  5. Step 5: Solve for x
    x = 39,116,058.22/7,021.14
  6. Step 6: Final answer
    x = 5,571.18

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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.