Home / 5,522-7,620.36-3,038.16

Finding the Fourth Proportional to 5,522, 7,620.36 and 3,038.16

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Solution

The fourth proportional to 5,522, 7,620.36 and 3,038.16 is: 4,192.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,522 : 7,620.36 = 3,038.16 : x
  2. Step 2: Convert to fraction form
    5,522/7,620.36 = 3,038.16/x
  3. Step 3: Cross multiply
    5,522x = 7,620.36 × 3,038.16
  4. Step 4: Simplify right side
    5,522x = 23,151,872.94
  5. Step 5: Solve for x
    x = 23,151,872.94/5,522
  6. Step 6: Final answer
    x = 4,192.66

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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.