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Finding the Fourth Proportional to 3,260.39, 4,890.01 and 1,411.01

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Solution

The fourth proportional to 3,260.39, 4,890.01 and 1,411.01 is: 2,116.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,260.39 : 4,890.01 = 1,411.01 : x
  2. Step 2: Convert to fraction form
    3,260.39/4,890.01 = 1,411.01/x
  3. Step 3: Cross multiply
    3,260.39x = 4,890.01 × 1,411.01
  4. Step 4: Simplify right side
    3,260.39x = 6,899,853.01
  5. Step 5: Solve for x
    x = 6,899,853.01/3,260.39
  6. Step 6: Final answer
    x = 2,116.27

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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.