Home / 5,785.22-8,678.27-2,087.82

Finding the Fourth Proportional to 5,785.22, 8,678.27 and 2,087.82

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Solution

The fourth proportional to 5,785.22, 8,678.27 and 2,087.82 is: 3,131.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,785.22 : 8,678.27 = 2,087.82 : x
  2. Step 2: Convert to fraction form
    5,785.22/8,678.27 = 2,087.82/x
  3. Step 3: Cross multiply
    5,785.22x = 8,678.27 × 2,087.82
  4. Step 4: Simplify right side
    5,785.22x = 18,118,670.89
  5. Step 5: Solve for x
    x = 18,118,670.89/5,785.22
  6. Step 6: Final answer
    x = 3,131.89

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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.