Home / 6,289.13-8,679.20-3,494.63

Finding the Fourth Proportional to 6,289.13, 8,679.20 and 3,494.63

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Solution

The fourth proportional to 6,289.13, 8,679.20 and 3,494.63 is: 4,822.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,289.13 : 8,679.20 = 3,494.63 : x
  2. Step 2: Convert to fraction form
    6,289.13/8,679.20 = 3,494.63/x
  3. Step 3: Cross multiply
    6,289.13x = 8,679.20 × 3,494.63
  4. Step 4: Simplify right side
    6,289.13x = 30,330,531.83
  5. Step 5: Solve for x
    x = 30,330,531.83/6,289.13
  6. Step 6: Final answer
    x = 4,822.70

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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.