Home / 4,815.79-6,644.77-2,928.35

Finding the Fourth Proportional to 4,815.79, 6,644.77 and 2,928.35

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Solution

The fourth proportional to 4,815.79, 6,644.77 and 2,928.35 is: 4,040.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,815.79 : 6,644.77 = 2,928.35 : x
  2. Step 2: Convert to fraction form
    4,815.79/6,644.77 = 2,928.35/x
  3. Step 3: Cross multiply
    4,815.79x = 6,644.77 × 2,928.35
  4. Step 4: Simplify right side
    4,815.79x = 19,458,221.52
  5. Step 5: Solve for x
    x = 19,458,221.52/4,815.79
  6. Step 6: Final answer
    x = 4,040.51

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.