Home / 5,987.37-8,981.10-2,091.78

Finding the Fourth Proportional to 5,987.37, 8,981.10 and 2,091.78

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Solution

The fourth proportional to 5,987.37, 8,981.10 and 2,091.78 is: 3,137.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,987.37 : 8,981.10 = 2,091.78 : x
  2. Step 2: Convert to fraction form
    5,987.37/8,981.10 = 2,091.78/x
  3. Step 3: Cross multiply
    5,987.37x = 8,981.10 × 2,091.78
  4. Step 4: Simplify right side
    5,987.37x = 18,786,485.36
  5. Step 5: Solve for x
    x = 18,786,485.36/5,987.37
  6. Step 6: Final answer
    x = 3,137.69

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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.