Home / 2,872.59-4,302.81-1,639.37

Finding the Fourth Proportional to 2,872.59, 4,302.81 and 1,639.37

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Solution

The fourth proportional to 2,872.59, 4,302.81 and 1,639.37 is: 2,455.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,872.59 : 4,302.81 = 1,639.37 : x
  2. Step 2: Convert to fraction form
    2,872.59/4,302.81 = 1,639.37/x
  3. Step 3: Cross multiply
    2,872.59x = 4,302.81 × 1,639.37
  4. Step 4: Simplify right side
    2,872.59x = 7,053,876.12
  5. Step 5: Solve for x
    x = 7,053,876.12/2,872.59
  6. Step 6: Final answer
    x = 2,455.58

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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.