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Finding the Fourth Proportional to 7,279.97, 10,038.41 and 4,918.01

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Solution

The fourth proportional to 7,279.97, 10,038.41 and 4,918.01 is: 6,781.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,279.97 : 10,038.41 = 4,918.01 : x
  2. Step 2: Convert to fraction form
    7,279.97/10,038.41 = 4,918.01/x
  3. Step 3: Cross multiply
    7,279.97x = 10,038.41 × 4,918.01
  4. Step 4: Simplify right side
    7,279.97x = 49,369,000.76
  5. Step 5: Solve for x
    x = 49,369,000.76/7,279.97
  6. Step 6: Final answer
    x = 6,781.48

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.