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Finding the Fourth Proportional to 5,675.48, 7,827.72 and 3,686.68

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Solution

The fourth proportional to 5,675.48, 7,827.72 and 3,686.68 is: 5,084.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,675.48 : 7,827.72 = 3,686.68 : x
  2. Step 2: Convert to fraction form
    5,675.48/7,827.72 = 3,686.68/x
  3. Step 3: Cross multiply
    5,675.48x = 7,827.72 × 3,686.68
  4. Step 4: Simplify right side
    5,675.48x = 28,858,283.24
  5. Step 5: Solve for x
    x = 28,858,283.24/5,675.48
  6. Step 6: Final answer
    x = 5,084.73

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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.