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Finding the Fourth Proportional to 6,308.87, 8,706.14 and 3,619.98

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Solution

The fourth proportional to 6,308.87, 8,706.14 and 3,619.98 is: 4,995.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,308.87 : 8,706.14 = 3,619.98 : x
  2. Step 2: Convert to fraction form
    6,308.87/8,706.14 = 3,619.98/x
  3. Step 3: Cross multiply
    6,308.87x = 8,706.14 × 3,619.98
  4. Step 4: Simplify right side
    6,308.87x = 31,516,038.45
  5. Step 5: Solve for x
    x = 31,516,038.45/6,308.87
  6. Step 6: Final answer
    x = 4,995.51

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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.