Home / 7,087.06-9,778.81-3,943.25

Finding the Fourth Proportional to 7,087.06, 9,778.81 and 3,943.25

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Solution

The fourth proportional to 7,087.06, 9,778.81 and 3,943.25 is: 5,440.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,087.06 : 9,778.81 = 3,943.25 : x
  2. Step 2: Convert to fraction form
    7,087.06/9,778.81 = 3,943.25/x
  3. Step 3: Cross multiply
    7,087.06x = 9,778.81 × 3,943.25
  4. Step 4: Simplify right side
    7,087.06x = 38,560,292.53
  5. Step 5: Solve for x
    x = 38,560,292.53/7,087.06
  6. Step 6: Final answer
    x = 5,440.94

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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.