Home / 5,855.19-8,784.45-3,081.21

Finding the Fourth Proportional to 5,855.19, 8,784.45 and 3,081.21

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Solution

The fourth proportional to 5,855.19, 8,784.45 and 3,081.21 is: 4,622.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,855.19 : 8,784.45 = 3,081.21 : x
  2. Step 2: Convert to fraction form
    5,855.19/8,784.45 = 3,081.21/x
  3. Step 3: Cross multiply
    5,855.19x = 8,784.45 × 3,081.21
  4. Step 4: Simplify right side
    5,855.19x = 27,066,735.18
  5. Step 5: Solve for x
    x = 27,066,735.18/5,855.19
  6. Step 6: Final answer
    x = 4,622.69

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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.