Home / 7,091.80-10,641.36-3,393.28

Finding the Fourth Proportional to 7,091.80, 10,641.36 and 3,393.28

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Solution

The fourth proportional to 7,091.80, 10,641.36 and 3,393.28 is: 5,091.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,091.80 : 10,641.36 = 3,393.28 : x
  2. Step 2: Convert to fraction form
    7,091.80/10,641.36 = 3,393.28/x
  3. Step 3: Cross multiply
    7,091.80x = 10,641.36 × 3,393.28
  4. Step 4: Simplify right side
    7,091.80x = 36,109,114.06
  5. Step 5: Solve for x
    x = 36,109,114.06/7,091.80
  6. Step 6: Final answer
    x = 5,091.67

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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.