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Finding the Fourth Proportional to 7,292.34, 10,940.99 and 3,130.56

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Solution

The fourth proportional to 7,292.34, 10,940.99 and 3,130.56 is: 4,696.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,292.34 : 10,940.99 = 3,130.56 : x
  2. Step 2: Convert to fraction form
    7,292.34/10,940.99 = 3,130.56/x
  3. Step 3: Cross multiply
    7,292.34x = 10,940.99 × 3,130.56
  4. Step 4: Simplify right side
    7,292.34x = 34,251,410.00
  5. Step 5: Solve for x
    x = 34,251,410.00/7,292.34
  6. Step 6: Final answer
    x = 4,696.90

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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.