Home / 2,928.23-4,392.19-1,079.19

Finding the Fourth Proportional to 2,928.23, 4,392.19 and 1,079.19

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Solution

The fourth proportional to 2,928.23, 4,392.19 and 1,079.19 is: 1,618.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,928.23 : 4,392.19 = 1,079.19 : x
  2. Step 2: Convert to fraction form
    2,928.23/4,392.19 = 1,079.19/x
  3. Step 3: Cross multiply
    2,928.23x = 4,392.19 × 1,079.19
  4. Step 4: Simplify right side
    2,928.23x = 4,739,985.79
  5. Step 5: Solve for x
    x = 4,739,985.79/2,928.23
  6. Step 6: Final answer
    x = 1,618.72

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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.