Home / 2,853.06-4,269.87-2,120.82

Finding the Fourth Proportional to 2,853.06, 4,269.87 and 2,120.82

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Solution

The fourth proportional to 2,853.06, 4,269.87 and 2,120.82 is: 3,174.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,853.06 : 4,269.87 = 2,120.82 : x
  2. Step 2: Convert to fraction form
    2,853.06/4,269.87 = 2,120.82/x
  3. Step 3: Cross multiply
    2,853.06x = 4,269.87 × 2,120.82
  4. Step 4: Simplify right side
    2,853.06x = 9,055,625.69
  5. Step 5: Solve for x
    x = 9,055,625.69/2,853.06
  6. Step 6: Final answer
    x = 3,174.00

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.