Home / 7,205.60-9,943.67-4,220.79

Finding the Fourth Proportional to 7,205.60, 9,943.67 and 4,220.79

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Solution

The fourth proportional to 7,205.60, 9,943.67 and 4,220.79 is: 5,824.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,205.60 : 9,943.67 = 4,220.79 : x
  2. Step 2: Convert to fraction form
    7,205.60/9,943.67 = 4,220.79/x
  3. Step 3: Cross multiply
    7,205.60x = 9,943.67 × 4,220.79
  4. Step 4: Simplify right side
    7,205.60x = 41,970,153.45
  5. Step 5: Solve for x
    x = 41,970,153.45/7,205.60
  6. Step 6: Final answer
    x = 5,824.66

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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.