Home / 7,180.07-9,908.18-3,993.35

Finding the Fourth Proportional to 7,180.07, 9,908.18 and 3,993.35

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Solution

The fourth proportional to 7,180.07, 9,908.18 and 3,993.35 is: 5,510.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,180.07 : 9,908.18 = 3,993.35 : x
  2. Step 2: Convert to fraction form
    7,180.07/9,908.18 = 3,993.35/x
  3. Step 3: Cross multiply
    7,180.07x = 9,908.18 × 3,993.35
  4. Step 4: Simplify right side
    7,180.07x = 39,566,761.10
  5. Step 5: Solve for x
    x = 39,566,761.10/7,180.07
  6. Step 6: Final answer
    x = 5,510.64

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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.