Home / 5,460.45-8,190.72-3,386.49

Finding the Fourth Proportional to 5,460.45, 8,190.72 and 3,386.49

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Solution

The fourth proportional to 5,460.45, 8,190.72 and 3,386.49 is: 5,079.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,460.45 : 8,190.72 = 3,386.49 : x
  2. Step 2: Convert to fraction form
    5,460.45/8,190.72 = 3,386.49/x
  3. Step 3: Cross multiply
    5,460.45x = 8,190.72 × 3,386.49
  4. Step 4: Simplify right side
    5,460.45x = 27,737,791.37
  5. Step 5: Solve for x
    x = 27,737,791.37/5,460.45
  6. Step 6: Final answer
    x = 5,079.76

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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.