Home / 5,290.72-7,935.44-1,395.42

Finding the Fourth Proportional to 5,290.72, 7,935.44 and 1,395.42

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Solution

The fourth proportional to 5,290.72, 7,935.44 and 1,395.42 is: 2,092.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,290.72 : 7,935.44 = 1,395.42 : x
  2. Step 2: Convert to fraction form
    5,290.72/7,935.44 = 1,395.42/x
  3. Step 3: Cross multiply
    5,290.72x = 7,935.44 × 1,395.42
  4. Step 4: Simplify right side
    5,290.72x = 11,073,271.68
  5. Step 5: Solve for x
    x = 11,073,271.68/5,290.72
  6. Step 6: Final answer
    x = 2,092.96

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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.