Home / 5,521.56-7,620.44-3,426

Finding the Fourth Proportional to 5,521.56, 7,620.44 and 3,426

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Solution

The fourth proportional to 5,521.56, 7,620.44 and 3,426 is: 4,728.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,521.56 : 7,620.44 = 3,426 : x
  2. Step 2: Convert to fraction form
    5,521.56/7,620.44 = 3,426/x
  3. Step 3: Cross multiply
    5,521.56x = 7,620.44 × 3,426
  4. Step 4: Simplify right side
    5,521.56x = 26,107,627.44
  5. Step 5: Solve for x
    x = 26,107,627.44/5,521.56
  6. Step 6: Final answer
    x = 4,728.31

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.