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Finding the Fourth Proportional to 4,679.35, 6,454.67 and 2,789.67

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Solution

The fourth proportional to 4,679.35, 6,454.67 and 2,789.67 is: 3,848.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,679.35 : 6,454.67 = 2,789.67 : x
  2. Step 2: Convert to fraction form
    4,679.35/6,454.67 = 2,789.67/x
  3. Step 3: Cross multiply
    4,679.35x = 6,454.67 × 2,789.67
  4. Step 4: Simplify right side
    4,679.35x = 18,006,353.04
  5. Step 5: Solve for x
    x = 18,006,353.04/4,679.35
  6. Step 6: Final answer
    x = 3,848.05

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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.