Home / 7,200.06-10,775.70-4,428.49

Finding the Fourth Proportional to 7,200.06, 10,775.70 and 4,428.49

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Solution

The fourth proportional to 7,200.06, 10,775.70 and 4,428.49 is: 6,627.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,200.06 : 10,775.70 = 4,428.49 : x
  2. Step 2: Convert to fraction form
    7,200.06/10,775.70 = 4,428.49/x
  3. Step 3: Cross multiply
    7,200.06x = 10,775.70 × 4,428.49
  4. Step 4: Simplify right side
    7,200.06x = 47,720,079.69
  5. Step 5: Solve for x
    x = 47,720,079.69/7,200.06
  6. Step 6: Final answer
    x = 6,627.73

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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.