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Finding the Fourth Proportional to 6,302.88, 8,688.96 and 4,621.32

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Solution

The fourth proportional to 6,302.88, 8,688.96 and 4,621.32 is: 6,370.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,302.88 : 8,688.96 = 4,621.32 : x
  2. Step 2: Convert to fraction form
    6,302.88/8,688.96 = 4,621.32/x
  3. Step 3: Cross multiply
    6,302.88x = 8,688.96 × 4,621.32
  4. Step 4: Simplify right side
    6,302.88x = 40,154,464.63
  5. Step 5: Solve for x
    x = 40,154,464.63/6,302.88
  6. Step 6: Final answer
    x = 6,370.81

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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.