Home / 2,928.30-4,392.48-1,079.84

Finding the Fourth Proportional to 2,928.30, 4,392.48 and 1,079.84

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Solution

The fourth proportional to 2,928.30, 4,392.48 and 1,079.84 is: 1,619.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,928.30 : 4,392.48 = 1,079.84 : x
  2. Step 2: Convert to fraction form
    2,928.30/4,392.48 = 1,079.84/x
  3. Step 3: Cross multiply
    2,928.30x = 4,392.48 × 1,079.84
  4. Step 4: Simplify right side
    2,928.30x = 4,743,175.60
  5. Step 5: Solve for x
    x = 4,743,175.60/2,928.30
  6. Step 6: Final answer
    x = 1,619.77

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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.