Home / 7,428.31-11,142.48-3,044.98

Finding the Fourth Proportional to 7,428.31, 11,142.48 and 3,044.98

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Solution

The fourth proportional to 7,428.31, 11,142.48 and 3,044.98 is: 4,567.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,428.31 : 11,142.48 = 3,044.98 : x
  2. Step 2: Convert to fraction form
    7,428.31/11,142.48 = 3,044.98/x
  3. Step 3: Cross multiply
    7,428.31x = 11,142.48 × 3,044.98
  4. Step 4: Simplify right side
    7,428.31x = 33,928,628.75
  5. Step 5: Solve for x
    x = 33,928,628.75/7,428.31
  6. Step 6: Final answer
    x = 4,567.48

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Double scale
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Similar ratio
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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.