Home / 1,285.80-1,928.73-464.06

Finding the Fourth Proportional to 1,285.80, 1,928.73 and 464.06

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Solution

The fourth proportional to 1,285.80, 1,928.73 and 464.06 is: 696.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,285.80 : 1,928.73 = 464.06 : x
  2. Step 2: Convert to fraction form
    1,285.80/1,928.73 = 464.06/x
  3. Step 3: Cross multiply
    1,285.80x = 1,928.73 × 464.06
  4. Step 4: Simplify right side
    1,285.80x = 895,046.44
  5. Step 5: Solve for x
    x = 895,046.44/1,285.80
  6. Step 6: Final answer
    x = 696.10

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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.