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Finding the Fourth Proportional to 3,239.35, 4,858.04 and 898.79

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Solution

The fourth proportional to 3,239.35, 4,858.04 and 898.79 is: 1,347.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,239.35 : 4,858.04 = 898.79 : x
  2. Step 2: Convert to fraction form
    3,239.35/4,858.04 = 898.79/x
  3. Step 3: Cross multiply
    3,239.35x = 4,858.04 × 898.79
  4. Step 4: Simplify right side
    3,239.35x = 4,366,335.73
  5. Step 5: Solve for x
    x = 4,366,335.73/3,239.35
  6. Step 6: Final answer
    x = 1,347.91

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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.