Home / 2,853.21-4,279.14-1,928.52

Finding the Fourth Proportional to 2,853.21, 4,279.14 and 1,928.52

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Solution

The fourth proportional to 2,853.21, 4,279.14 and 1,928.52 is: 2,892.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,853.21 : 4,279.14 = 1,928.52 : x
  2. Step 2: Convert to fraction form
    2,853.21/4,279.14 = 1,928.52/x
  3. Step 3: Cross multiply
    2,853.21x = 4,279.14 × 1,928.52
  4. Step 4: Simplify right side
    2,853.21x = 8,252,407.07
  5. Step 5: Solve for x
    x = 8,252,407.07/2,853.21
  6. Step 6: Final answer
    x = 2,892.32

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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.