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Finding the Fourth Proportional to 7,480.96, 10,312.65 and 4,791.79

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Solution

The fourth proportional to 7,480.96, 10,312.65 and 4,791.79 is: 6,605.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,480.96 : 10,312.65 = 4,791.79 : x
  2. Step 2: Convert to fraction form
    7,480.96/10,312.65 = 4,791.79/x
  3. Step 3: Cross multiply
    7,480.96x = 10,312.65 × 4,791.79
  4. Step 4: Simplify right side
    7,480.96x = 49,416,053.14
  5. Step 5: Solve for x
    x = 49,416,053.14/7,480.96
  6. Step 6: Final answer
    x = 6,605.58

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