Home / 4,427.87-6,638.72-1,961.35

Finding the Fourth Proportional to 4,427.87, 6,638.72 and 1,961.35

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Solution

The fourth proportional to 4,427.87, 6,638.72 and 1,961.35 is: 2,940.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,427.87 : 6,638.72 = 1,961.35 : x
  2. Step 2: Convert to fraction form
    4,427.87/6,638.72 = 1,961.35/x
  3. Step 3: Cross multiply
    4,427.87x = 6,638.72 × 1,961.35
  4. Step 4: Simplify right side
    4,427.87x = 13,020,827.07
  5. Step 5: Solve for x
    x = 13,020,827.07/4,427.87
  6. Step 6: Final answer
    x = 2,940.66

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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.