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Finding the Fourth Proportional to 3,339.81, 5,011.42 and 1,366.88

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Solution

The fourth proportional to 3,339.81, 5,011.42 and 1,366.88 is: 2,051.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,339.81 : 5,011.42 = 1,366.88 : x
  2. Step 2: Convert to fraction form
    3,339.81/5,011.42 = 1,366.88/x
  3. Step 3: Cross multiply
    3,339.81x = 5,011.42 × 1,366.88
  4. Step 4: Simplify right side
    3,339.81x = 6,849,983.86
  5. Step 5: Solve for x
    x = 6,849,983.86/3,339.81
  6. Step 6: Final answer
    x = 2,051.01

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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.