Home / 7,538.12-11,310.56-2,921.48

Finding the Fourth Proportional to 7,538.12, 11,310.56 and 2,921.48

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Solution

The fourth proportional to 7,538.12, 11,310.56 and 2,921.48 is: 4,383.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,538.12 : 11,310.56 = 2,921.48 : x
  2. Step 2: Convert to fraction form
    7,538.12/11,310.56 = 2,921.48/x
  3. Step 3: Cross multiply
    7,538.12x = 11,310.56 × 2,921.48
  4. Step 4: Simplify right side
    7,538.12x = 33,043,574.83
  5. Step 5: Solve for x
    x = 33,043,574.83/7,538.12
  6. Step 6: Final answer
    x = 4,383.53

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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.