Home / 5,785.12-8,678.36-2,089.09

Finding the Fourth Proportional to 5,785.12, 8,678.36 and 2,089.09

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Solution

The fourth proportional to 5,785.12, 8,678.36 and 2,089.09 is: 3,133.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,785.12 : 8,678.36 = 2,089.09 : x
  2. Step 2: Convert to fraction form
    5,785.12/8,678.36 = 2,089.09/x
  3. Step 3: Cross multiply
    5,785.12x = 8,678.36 × 2,089.09
  4. Step 4: Simplify right side
    5,785.12x = 18,129,821.26
  5. Step 5: Solve for x
    x = 18,129,821.26/5,785.12
  6. Step 6: Final answer
    x = 3,133.87

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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.