Home / 5,328.54-7,991.70-1,432.02

Finding the Fourth Proportional to 5,328.54, 7,991.70 and 1,432.02

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Solution

The fourth proportional to 5,328.54, 7,991.70 and 1,432.02 is: 2,147.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,328.54 : 7,991.70 = 1,432.02 : x
  2. Step 2: Convert to fraction form
    5,328.54/7,991.70 = 1,432.02/x
  3. Step 3: Cross multiply
    5,328.54x = 7,991.70 × 1,432.02
  4. Step 4: Simplify right side
    5,328.54x = 11,444,274.23
  5. Step 5: Solve for x
    x = 11,444,274.23/5,328.54
  6. Step 6: Final answer
    x = 2,147.73

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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.