Home / 1,928.35-2,886.99-1,433.80

Finding the Fourth Proportional to 1,928.35, 2,886.99 and 1,433.80

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Solution

The fourth proportional to 1,928.35, 2,886.99 and 1,433.80 is: 2,146.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,928.35 : 2,886.99 = 1,433.80 : x
  2. Step 2: Convert to fraction form
    1,928.35/2,886.99 = 1,433.80/x
  3. Step 3: Cross multiply
    1,928.35x = 2,886.99 × 1,433.80
  4. Step 4: Simplify right side
    1,928.35x = 4,139,366.26
  5. Step 5: Solve for x
    x = 4,139,366.26/1,928.35
  6. Step 6: Final answer
    x = 2,146.58

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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.