Home / 7,220.50-9,964.29-4,076.62

Finding the Fourth Proportional to 7,220.50, 9,964.29 and 4,076.62

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Solution

The fourth proportional to 7,220.50, 9,964.29 and 4,076.62 is: 5,625.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,220.50 : 9,964.29 = 4,076.62 : x
  2. Step 2: Convert to fraction form
    7,220.50/9,964.29 = 4,076.62/x
  3. Step 3: Cross multiply
    7,220.50x = 9,964.29 × 4,076.62
  4. Step 4: Simplify right side
    7,220.50x = 40,620,623.90
  5. Step 5: Solve for x
    x = 40,620,623.90/7,220.50
  6. Step 6: Final answer
    x = 5,625.74

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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.