Home / 2,928.20-4,040.91-1,601.90

Finding the Fourth Proportional to 2,928.20, 4,040.91 and 1,601.90

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Solution

The fourth proportional to 2,928.20, 4,040.91 and 1,601.90 is: 2,210.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,928.20 : 4,040.91 = 1,601.90 : x
  2. Step 2: Convert to fraction form
    2,928.20/4,040.91 = 1,601.90/x
  3. Step 3: Cross multiply
    2,928.20x = 4,040.91 × 1,601.90
  4. Step 4: Simplify right side
    2,928.20x = 6,473,113.52
  5. Step 5: Solve for x
    x = 6,473,113.52/2,928.20
  6. Step 6: Final answer
    x = 2,210.62

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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.