Home / 5,846.47-8,768.75-2,147.78

Finding the Fourth Proportional to 5,846.47, 8,768.75 and 2,147.78

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Solution

The fourth proportional to 5,846.47, 8,768.75 and 2,147.78 is: 3,221.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,846.47 : 8,768.75 = 2,147.78 : x
  2. Step 2: Convert to fraction form
    5,846.47/8,768.75 = 2,147.78/x
  3. Step 3: Cross multiply
    5,846.47x = 8,768.75 × 2,147.78
  4. Step 4: Simplify right side
    5,846.47x = 18,833,345.88
  5. Step 5: Solve for x
    x = 18,833,345.88/5,846.47
  6. Step 6: Final answer
    x = 3,221.32

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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.