Home / 6,391.71-9,587.56-2,928.96

Finding the Fourth Proportional to 6,391.71, 9,587.56 and 2,928.96

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Solution

The fourth proportional to 6,391.71, 9,587.56 and 2,928.96 is: 4,393.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,391.71 : 9,587.56 = 2,928.96 : x
  2. Step 2: Convert to fraction form
    6,391.71/9,587.56 = 2,928.96/x
  3. Step 3: Cross multiply
    6,391.71x = 9,587.56 × 2,928.96
  4. Step 4: Simplify right side
    6,391.71x = 28,081,579.74
  5. Step 5: Solve for x
    x = 28,081,579.74/6,391.71
  6. Step 6: Final answer
    x = 4,393.44

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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.