Home / 5,531.12-7,632.60-3,047.12

Finding the Fourth Proportional to 5,531.12, 7,632.60 and 3,047.12

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Solution

The fourth proportional to 5,531.12, 7,632.60 and 3,047.12 is: 4,204.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,531.12 : 7,632.60 = 3,047.12 : x
  2. Step 2: Convert to fraction form
    5,531.12/7,632.60 = 3,047.12/x
  3. Step 3: Cross multiply
    5,531.12x = 7,632.60 × 3,047.12
  4. Step 4: Simplify right side
    5,531.12x = 23,257,448.11
  5. Step 5: Solve for x
    x = 23,257,448.11/5,531.12
  6. Step 6: Final answer
    x = 4,204.84

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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.