Home / 5,785.12-8,678.14-2,274.89

Finding the Fourth Proportional to 5,785.12, 8,678.14 and 2,274.89

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Solution

The fourth proportional to 5,785.12, 8,678.14 and 2,274.89 is: 3,412.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,785.12 : 8,678.14 = 2,274.89 : x
  2. Step 2: Convert to fraction form
    5,785.12/8,678.14 = 2,274.89/x
  3. Step 3: Cross multiply
    5,785.12x = 8,678.14 × 2,274.89
  4. Step 4: Simplify right side
    5,785.12x = 19,741,764.83
  5. Step 5: Solve for x
    x = 19,741,764.83/5,785.12
  6. Step 6: Final answer
    x = 3,412.51

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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.