Home / 6,608.70-9,120.73-4,220.87

Finding the Fourth Proportional to 6,608.70, 9,120.73 and 4,220.87

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Solution

The fourth proportional to 6,608.70, 9,120.73 and 4,220.87 is: 5,825.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,608.70 : 9,120.73 = 4,220.87 : x
  2. Step 2: Convert to fraction form
    6,608.70/9,120.73 = 4,220.87/x
  3. Step 3: Cross multiply
    6,608.70x = 9,120.73 × 4,220.87
  4. Step 4: Simplify right side
    6,608.70x = 38,497,394.53
  5. Step 5: Solve for x
    x = 38,497,394.53/6,608.70
  6. Step 6: Final answer
    x = 5,825.26

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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.