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Finding the Fourth Proportional to 6,347.16, 8,759.62 and 3,515.22

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Solution

The fourth proportional to 6,347.16, 8,759.62 and 3,515.22 is: 4,851.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,347.16 : 8,759.62 = 3,515.22 : x
  2. Step 2: Convert to fraction form
    6,347.16/8,759.62 = 3,515.22/x
  3. Step 3: Cross multiply
    6,347.16x = 8,759.62 × 3,515.22
  4. Step 4: Simplify right side
    6,347.16x = 30,792,010.56
  5. Step 5: Solve for x
    x = 30,792,010.56/6,347.16
  6. Step 6: Final answer
    x = 4,851.31

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1.5x scale

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.