Home / 1,286.76-1,928.70-1,030.44

Finding the Fourth Proportional to 1,286.76, 1,928.70 and 1,030.44

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Solution

The fourth proportional to 1,286.76, 1,928.70 and 1,030.44 is: 1,544.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,286.76 : 1,928.70 = 1,030.44 : x
  2. Step 2: Convert to fraction form
    1,286.76/1,928.70 = 1,030.44/x
  3. Step 3: Cross multiply
    1,286.76x = 1,928.70 × 1,030.44
  4. Step 4: Simplify right side
    1,286.76x = 1,987,409.63
  5. Step 5: Solve for x
    x = 1,987,409.63/1,286.76
  6. Step 6: Final answer
    x = 1,544.51

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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.