Home / 2,928.25-4,040.99-2,182.85

Finding the Fourth Proportional to 2,928.25, 4,040.99 and 2,182.85

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Solution

The fourth proportional to 2,928.25, 4,040.99 and 2,182.85 is: 3,012.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,928.25 : 4,040.99 = 2,182.85 : x
  2. Step 2: Convert to fraction form
    2,928.25/4,040.99 = 2,182.85/x
  3. Step 3: Cross multiply
    2,928.25x = 4,040.99 × 2,182.85
  4. Step 4: Simplify right side
    2,928.25x = 8,820,875.02
  5. Step 5: Solve for x
    x = 8,820,875.02/2,928.25
  6. Step 6: Final answer
    x = 3,012.34

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1.5x scale

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.