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Finding the Fourth Proportional to 6,371.40, 8,792.58 and 3,576.90

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Solution

The fourth proportional to 6,371.40, 8,792.58 and 3,576.90 is: 4,936.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,371.40 : 8,792.58 = 3,576.90 : x
  2. Step 2: Convert to fraction form
    6,371.40/8,792.58 = 3,576.90/x
  3. Step 3: Cross multiply
    6,371.40x = 8,792.58 × 3,576.90
  4. Step 4: Simplify right side
    6,371.40x = 31,450,179.40
  5. Step 5: Solve for x
    x = 31,450,179.40/6,371.40
  6. Step 6: Final answer
    x = 4,936.15

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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.