Home / 5,620.83-8,432.33-2,157.81

Finding the Fourth Proportional to 5,620.83, 8,432.33 and 2,157.81

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Solution

The fourth proportional to 5,620.83, 8,432.33 and 2,157.81 is: 3,237.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,620.83 : 8,432.33 = 2,157.81 : x
  2. Step 2: Convert to fraction form
    5,620.83/8,432.33 = 2,157.81/x
  3. Step 3: Cross multiply
    5,620.83x = 8,432.33 × 2,157.81
  4. Step 4: Simplify right side
    5,620.83x = 18,195,366.00
  5. Step 5: Solve for x
    x = 18,195,366.00/5,620.83
  6. Step 6: Final answer
    x = 3,237.13

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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.