Home / 1,286.48-1,930.08-1,056.44

Finding the Fourth Proportional to 1,286.48, 1,930.08 and 1,056.44

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Solution

The fourth proportional to 1,286.48, 1,930.08 and 1,056.44 is: 1,584.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,286.48 : 1,930.08 = 1,056.44 : x
  2. Step 2: Convert to fraction form
    1,286.48/1,930.08 = 1,056.44/x
  3. Step 3: Cross multiply
    1,286.48x = 1,930.08 × 1,056.44
  4. Step 4: Simplify right side
    1,286.48x = 2,039,013.72
  5. Step 5: Solve for x
    x = 2,039,013.72/1,286.48
  6. Step 6: Final answer
    x = 1,584.96

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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.