Home / 7,220.97-10,810.53-4,439.21

Finding the Fourth Proportional to 7,220.97, 10,810.53 and 4,439.21

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Solution

The fourth proportional to 7,220.97, 10,810.53 and 4,439.21 is: 6,645.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,220.97 : 10,810.53 = 4,439.21 : x
  2. Step 2: Convert to fraction form
    7,220.97/10,810.53 = 4,439.21/x
  3. Step 3: Cross multiply
    7,220.97x = 10,810.53 × 4,439.21
  4. Step 4: Simplify right side
    7,220.97x = 47,990,158.83
  5. Step 5: Solve for x
    x = 47,990,158.83/7,220.97
  6. Step 6: Final answer
    x = 6,645.94

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.