Home / 5,843.40-8,765.12-2,145.93

Finding the Fourth Proportional to 5,843.40, 8,765.12 and 2,145.93

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Solution

The fourth proportional to 5,843.40, 8,765.12 and 2,145.93 is: 3,218.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,843.40 : 8,765.12 = 2,145.93 : x
  2. Step 2: Convert to fraction form
    5,843.40/8,765.12 = 2,145.93/x
  3. Step 3: Cross multiply
    5,843.40x = 8,765.12 × 2,145.93
  4. Step 4: Simplify right side
    5,843.40x = 18,809,333.96
  5. Step 5: Solve for x
    x = 18,809,333.96/5,843.40
  6. Step 6: Final answer
    x = 3,218.90

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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.