Home / 5,665.80-8,500.16-2,155.87

Finding the Fourth Proportional to 5,665.80, 8,500.16 and 2,155.87

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Solution

The fourth proportional to 5,665.80, 8,500.16 and 2,155.87 is: 3,234.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,665.80 : 8,500.16 = 2,155.87 : x
  2. Step 2: Convert to fraction form
    5,665.80/8,500.16 = 2,155.87/x
  3. Step 3: Cross multiply
    5,665.80x = 8,500.16 × 2,155.87
  4. Step 4: Simplify right side
    5,665.80x = 18,325,224.08
  5. Step 5: Solve for x
    x = 18,325,224.08/5,665.80
  6. Step 6: Final answer
    x = 3,234.36

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1.5x scale

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.