Home / 7,201.12-10,790.88-5,008.72

Finding the Fourth Proportional to 7,201.12, 10,790.88 and 5,008.72

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Solution

The fourth proportional to 7,201.12, 10,790.88 and 5,008.72 is: 7,505.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,201.12 : 10,790.88 = 5,008.72 : x
  2. Step 2: Convert to fraction form
    7,201.12/10,790.88 = 5,008.72/x
  3. Step 3: Cross multiply
    7,201.12x = 10,790.88 × 5,008.72
  4. Step 4: Simplify right side
    7,201.12x = 54,048,496.47
  5. Step 5: Solve for x
    x = 54,048,496.47/7,201.12
  6. Step 6: Final answer
    x = 7,505.57

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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.