Home / 2,928.12-4,040.61-1,601.79

Finding the Fourth Proportional to 2,928.12, 4,040.61 and 1,601.79

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Solution

The fourth proportional to 2,928.12, 4,040.61 and 1,601.79 is: 2,210.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,928.12 : 4,040.61 = 1,601.79 : x
  2. Step 2: Convert to fraction form
    2,928.12/4,040.61 = 1,601.79/x
  3. Step 3: Cross multiply
    2,928.12x = 4,040.61 × 1,601.79
  4. Step 4: Simplify right side
    2,928.12x = 6,472,208.69
  5. Step 5: Solve for x
    x = 6,472,208.69/2,928.12
  6. Step 6: Final answer
    x = 2,210.36

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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.