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Finding the Fourth Proportional to 5,357.76, 7,392.84 and 2,999.76

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Solution

The fourth proportional to 5,357.76, 7,392.84 and 2,999.76 is: 4,139.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,357.76 : 7,392.84 = 2,999.76 : x
  2. Step 2: Convert to fraction form
    5,357.76/7,392.84 = 2,999.76/x
  3. Step 3: Cross multiply
    5,357.76x = 7,392.84 × 2,999.76
  4. Step 4: Simplify right side
    5,357.76x = 22,176,745.72
  5. Step 5: Solve for x
    x = 22,176,745.72/5,357.76
  6. Step 6: Final answer
    x = 4,139.18

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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.