Home / 2,928.07-4,040.73-1,601.78

Finding the Fourth Proportional to 2,928.07, 4,040.73 and 1,601.78

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Solution

The fourth proportional to 2,928.07, 4,040.73 and 1,601.78 is: 2,210.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,928.07 : 4,040.73 = 1,601.78 : x
  2. Step 2: Convert to fraction form
    2,928.07/4,040.73 = 1,601.78/x
  3. Step 3: Cross multiply
    2,928.07x = 4,040.73 × 1,601.78
  4. Step 4: Simplify right side
    2,928.07x = 6,472,360.50
  5. Step 5: Solve for x
    x = 6,472,360.50/2,928.07
  6. Step 6: Final answer
    x = 2,210.45

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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.