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Finding the Fourth Proportional to 7,292.79, 10,939.36 and 2,850.26

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Solution

The fourth proportional to 7,292.79, 10,939.36 and 2,850.26 is: 4,275.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,292.79 : 10,939.36 = 2,850.26 : x
  2. Step 2: Convert to fraction form
    7,292.79/10,939.36 = 2,850.26/x
  3. Step 3: Cross multiply
    7,292.79x = 10,939.36 × 2,850.26
  4. Step 4: Simplify right side
    7,292.79x = 31,180,010.12
  5. Step 5: Solve for x
    x = 31,180,010.12/7,292.79
  6. Step 6: Final answer
    x = 4,275.45

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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.