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Finding the Fourth Proportional to 7,224.07, 10,840.41 and 3,120.07

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Solution

The fourth proportional to 7,224.07, 10,840.41 and 3,120.07 is: 4,681.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,224.07 : 10,840.41 = 3,120.07 : x
  2. Step 2: Convert to fraction form
    7,224.07/10,840.41 = 3,120.07/x
  3. Step 3: Cross multiply
    7,224.07x = 10,840.41 × 3,120.07
  4. Step 4: Simplify right side
    7,224.07x = 33,822,838.03
  5. Step 5: Solve for x
    x = 33,822,838.03/7,224.07
  6. Step 6: Final answer
    x = 4,681.96

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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.