Home / 7,179.16-9,907.22-3,993.02

Finding the Fourth Proportional to 7,179.16, 9,907.22 and 3,993.02

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Solution

The fourth proportional to 7,179.16, 9,907.22 and 3,993.02 is: 5,510.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,179.16 : 9,907.22 = 3,993.02 : x
  2. Step 2: Convert to fraction form
    7,179.16/9,907.22 = 3,993.02/x
  3. Step 3: Cross multiply
    7,179.16x = 9,907.22 × 3,993.02
  4. Step 4: Simplify right side
    7,179.16x = 39,559,727.60
  5. Step 5: Solve for x
    x = 39,559,727.60/7,179.16
  6. Step 6: Final answer
    x = 5,510.36

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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.