Home / 6,289.21-8,679.09-3,494.71

Finding the Fourth Proportional to 6,289.21, 8,679.09 and 3,494.71

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Solution

The fourth proportional to 6,289.21, 8,679.09 and 3,494.71 is: 4,822.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,289.21 : 8,679.09 = 3,494.71 : x
  2. Step 2: Convert to fraction form
    6,289.21/8,679.09 = 3,494.71/x
  3. Step 3: Cross multiply
    6,289.21x = 8,679.09 × 3,494.71
  4. Step 4: Simplify right side
    6,289.21x = 30,330,902.61
  5. Step 5: Solve for x
    x = 30,330,902.61/6,289.21
  6. Step 6: Final answer
    x = 4,822.69

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.