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Finding the Fourth Proportional to 4,981.62, 7,474.14 and 3,130.56

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Solution

The fourth proportional to 4,981.62, 7,474.14 and 3,130.56 is: 4,696.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,981.62 : 7,474.14 = 3,130.56 : x
  2. Step 2: Convert to fraction form
    4,981.62/7,474.14 = 3,130.56/x
  3. Step 3: Cross multiply
    4,981.62x = 7,474.14 × 3,130.56
  4. Step 4: Simplify right side
    4,981.62x = 23,398,243.72
  5. Step 5: Solve for x
    x = 23,398,243.72/4,981.62
  6. Step 6: Final answer
    x = 4,696.91

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.