Home / 5,531.16-7,632.36-3,141.12

Finding the Fourth Proportional to 5,531.16, 7,632.36 and 3,141.12

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Solution

The fourth proportional to 5,531.16, 7,632.36 and 3,141.12 is: 4,334.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,531.16 : 7,632.36 = 3,141.12 : x
  2. Step 2: Convert to fraction form
    5,531.16/7,632.36 = 3,141.12/x
  3. Step 3: Cross multiply
    5,531.16x = 7,632.36 × 3,141.12
  4. Step 4: Simplify right side
    5,531.16x = 23,974,158.64
  5. Step 5: Solve for x
    x = 23,974,158.64/5,531.16
  6. Step 6: Final answer
    x = 4,334.38

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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.