Home / 5,620.86-8,431.29-1,725.30

Finding the Fourth Proportional to 5,620.86, 8,431.29 and 1,725.30

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Solution

The fourth proportional to 5,620.86, 8,431.29 and 1,725.30 is: 2,587.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,620.86 : 8,431.29 = 1,725.30 : x
  2. Step 2: Convert to fraction form
    5,620.86/8,431.29 = 1,725.30/x
  3. Step 3: Cross multiply
    5,620.86x = 8,431.29 × 1,725.30
  4. Step 4: Simplify right side
    5,620.86x = 14,546,504.64
  5. Step 5: Solve for x
    x = 14,546,504.64/5,620.86
  6. Step 6: Final answer
    x = 2,587.95

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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.