Home / 5,817.15-8,728.06-2,119.64

Finding the Fourth Proportional to 5,817.15, 8,728.06 and 2,119.64

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Solution

The fourth proportional to 5,817.15, 8,728.06 and 2,119.64 is: 3,180.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,817.15 : 8,728.06 = 2,119.64 : x
  2. Step 2: Convert to fraction form
    5,817.15/8,728.06 = 2,119.64/x
  3. Step 3: Cross multiply
    5,817.15x = 8,728.06 × 2,119.64
  4. Step 4: Simplify right side
    5,817.15x = 18,500,345.10
  5. Step 5: Solve for x
    x = 18,500,345.10/5,817.15
  6. Step 6: Final answer
    x = 3,180.31

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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.