Home / 7,442.80-11,150.70-3,538.60

Finding the Fourth Proportional to 7,442.80, 11,150.70 and 3,538.60

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Solution

The fourth proportional to 7,442.80, 11,150.70 and 3,538.60 is: 5,301.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,442.80 : 11,150.70 = 3,538.60 : x
  2. Step 2: Convert to fraction form
    7,442.80/11,150.70 = 3,538.60/x
  3. Step 3: Cross multiply
    7,442.80x = 11,150.70 × 3,538.60
  4. Step 4: Simplify right side
    7,442.80x = 39,457,867.02
  5. Step 5: Solve for x
    x = 39,457,867.02/7,442.80
  6. Step 6: Final answer
    x = 5,301.48

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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.