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Finding the Fourth Proportional to 6,289.52, 8,679.72 and 3,637.76

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Solution

The fourth proportional to 6,289.52, 8,679.72 and 3,637.76 is: 5,020.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,289.52 : 8,679.72 = 3,637.76 : x
  2. Step 2: Convert to fraction form
    6,289.52/8,679.72 = 3,637.76/x
  3. Step 3: Cross multiply
    6,289.52x = 8,679.72 × 3,637.76
  4. Step 4: Simplify right side
    6,289.52x = 31,574,738.23
  5. Step 5: Solve for x
    x = 31,574,738.23/6,289.52
  6. Step 6: Final answer
    x = 5,020.21

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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.