Home / 7,427.88-11,142.40-2,497.48

Finding the Fourth Proportional to 7,427.88, 11,142.40 and 2,497.48

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Solution

The fourth proportional to 7,427.88, 11,142.40 and 2,497.48 is: 3,746.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,427.88 : 11,142.40 = 2,497.48 : x
  2. Step 2: Convert to fraction form
    7,427.88/11,142.40 = 2,497.48/x
  3. Step 3: Cross multiply
    7,427.88x = 11,142.40 × 2,497.48
  4. Step 4: Simplify right side
    7,427.88x = 27,827,921.15
  5. Step 5: Solve for x
    x = 27,827,921.15/7,427.88
  6. Step 6: Final answer
    x = 3,746.42

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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.