Home / 7,199.29-9,935.83-4,012.87

Finding the Fourth Proportional to 7,199.29, 9,935.83 and 4,012.87

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Solution

The fourth proportional to 7,199.29, 9,935.83 and 4,012.87 is: 5,538.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,199.29 : 9,935.83 = 4,012.87 : x
  2. Step 2: Convert to fraction form
    7,199.29/9,935.83 = 4,012.87/x
  3. Step 3: Cross multiply
    7,199.29x = 9,935.83 × 4,012.87
  4. Step 4: Simplify right side
    7,199.29x = 39,871,198.91
  5. Step 5: Solve for x
    x = 39,871,198.91/7,199.29
  6. Step 6: Final answer
    x = 5,538.21

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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.