Home / 7,391.77-11,087.56-2,126.90

Finding the Fourth Proportional to 7,391.77, 11,087.56 and 2,126.90

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Solution

The fourth proportional to 7,391.77, 11,087.56 and 2,126.90 is: 3,190.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,391.77 : 11,087.56 = 2,126.90 : x
  2. Step 2: Convert to fraction form
    7,391.77/11,087.56 = 2,126.90/x
  3. Step 3: Cross multiply
    7,391.77x = 11,087.56 × 2,126.90
  4. Step 4: Simplify right side
    7,391.77x = 23,582,131.36
  5. Step 5: Solve for x
    x = 23,582,131.36/7,391.77
  6. Step 6: Final answer
    x = 3,190.32

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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.