Home / 7,428.90-11,142.94-2,498.03

Finding the Fourth Proportional to 7,428.90, 11,142.94 and 2,498.03

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Solution

The fourth proportional to 7,428.90, 11,142.94 and 2,498.03 is: 3,746.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,428.90 : 11,142.94 = 2,498.03 : x
  2. Step 2: Convert to fraction form
    7,428.90/11,142.94 = 2,498.03/x
  3. Step 3: Cross multiply
    7,428.90x = 11,142.94 × 2,498.03
  4. Step 4: Simplify right side
    7,428.90x = 27,835,398.41
  5. Step 5: Solve for x
    x = 27,835,398.41/7,428.90
  6. Step 6: Final answer
    x = 3,746.91

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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.