Home / 6,172.79-8,518.42-3,520.14

Finding the Fourth Proportional to 6,172.79, 8,518.42 and 3,520.14

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Solution

The fourth proportional to 6,172.79, 8,518.42 and 3,520.14 is: 4,857.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,172.79 : 8,518.42 = 3,520.14 : x
  2. Step 2: Convert to fraction form
    6,172.79/8,518.42 = 3,520.14/x
  3. Step 3: Cross multiply
    6,172.79x = 8,518.42 × 3,520.14
  4. Step 4: Simplify right side
    6,172.79x = 29,986,013.38
  5. Step 5: Solve for x
    x = 29,986,013.38/6,172.79
  6. Step 6: Final answer
    x = 4,857.77

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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.