Home / 2,928.94-4,389.25-1,078.19

Finding the Fourth Proportional to 2,928.94, 4,389.25 and 1,078.19

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Solution

The fourth proportional to 2,928.94, 4,389.25 and 1,078.19 is: 1,615.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,928.94 : 4,389.25 = 1,078.19 : x
  2. Step 2: Convert to fraction form
    2,928.94/4,389.25 = 1,078.19/x
  3. Step 3: Cross multiply
    2,928.94x = 4,389.25 × 1,078.19
  4. Step 4: Simplify right side
    2,928.94x = 4,732,445.46
  5. Step 5: Solve for x
    x = 4,732,445.46/2,928.94
  6. Step 6: Final answer
    x = 1,615.75

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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.