Home / 2,427.30-3,639.60-964.80

Finding the Fourth Proportional to 2,427.30, 3,639.60 and 964.80

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Solution

The fourth proportional to 2,427.30, 3,639.60 and 964.80 is: 1,446.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,427.30 : 3,639.60 = 964.80 : x
  2. Step 2: Convert to fraction form
    2,427.30/3,639.60 = 964.80/x
  3. Step 3: Cross multiply
    2,427.30x = 3,639.60 × 964.80
  4. Step 4: Simplify right side
    2,427.30x = 3,511,486.08
  5. Step 5: Solve for x
    x = 3,511,486.08/2,427.30
  6. Step 6: Final answer
    x = 1,446.66

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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.