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Finding the Fourth Proportional to 4,053, 6,079.68 and 1,317

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Solution

The fourth proportional to 4,053, 6,079.68 and 1,317 is: 1,975.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,053 : 6,079.68 = 1,317 : x
  2. Step 2: Convert to fraction form
    4,053/6,079.68 = 1,317/x
  3. Step 3: Cross multiply
    4,053x = 6,079.68 × 1,317
  4. Step 4: Simplify right side
    4,053x = 8,006,938.56
  5. Step 5: Solve for x
    x = 8,006,938.56/4,053
  6. Step 6: Final answer
    x = 1,975.56

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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.