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Finding the Fourth Proportional to 6,310, 8,707.86 and 3,515.56

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Solution

The fourth proportional to 6,310, 8,707.86 and 3,515.56 is: 4,851.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,310 : 8,707.86 = 3,515.56 : x
  2. Step 2: Convert to fraction form
    6,310/8,707.86 = 3,515.56/x
  3. Step 3: Cross multiply
    6,310x = 8,707.86 × 3,515.56
  4. Step 4: Simplify right side
    6,310x = 30,613,004.30
  5. Step 5: Solve for x
    x = 30,613,004.30/6,310
  6. Step 6: Final answer
    x = 4,851.51

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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.