Home / 5,620.10-8,431.38-1,671.66

Finding the Fourth Proportional to 5,620.10, 8,431.38 and 1,671.66

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Solution

The fourth proportional to 5,620.10, 8,431.38 and 1,671.66 is: 2,507.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,620.10 : 8,431.38 = 1,671.66 : x
  2. Step 2: Convert to fraction form
    5,620.10/8,431.38 = 1,671.66/x
  3. Step 3: Cross multiply
    5,620.10x = 8,431.38 × 1,671.66
  4. Step 4: Simplify right side
    5,620.10x = 14,094,400.69
  5. Step 5: Solve for x
    x = 14,094,400.69/5,620.10
  6. Step 6: Final answer
    x = 2,507.86

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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.