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Finding the Fourth Proportional to 2,038.64, 3,059.70 and 806.93

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Solution

The fourth proportional to 2,038.64, 3,059.70 and 806.93 is: 1,211.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,038.64 : 3,059.70 = 806.93 : x
  2. Step 2: Convert to fraction form
    2,038.64/3,059.70 = 806.93/x
  3. Step 3: Cross multiply
    2,038.64x = 3,059.70 × 806.93
  4. Step 4: Simplify right side
    2,038.64x = 2,468,963.72
  5. Step 5: Solve for x
    x = 2,468,963.72/2,038.64
  6. Step 6: Final answer
    x = 1,211.08

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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.