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Finding the Fourth Proportional to 6,371.78, 8,792.99 and 3,539.18

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Solution

The fourth proportional to 6,371.78, 8,792.99 and 3,539.18 is: 4,884.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,371.78 : 8,792.99 = 3,539.18 : x
  2. Step 2: Convert to fraction form
    6,371.78/8,792.99 = 3,539.18/x
  3. Step 3: Cross multiply
    6,371.78x = 8,792.99 × 3,539.18
  4. Step 4: Simplify right side
    6,371.78x = 31,119,956.65
  5. Step 5: Solve for x
    x = 31,119,956.65/6,371.78
  6. Step 6: Final answer
    x = 4,884.03

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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.