Home / 2,920.27-4,029.96-1,872.33

Finding the Fourth Proportional to 2,920.27, 4,029.96 and 1,872.33

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Solution

The fourth proportional to 2,920.27, 4,029.96 and 1,872.33 is: 2,583.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,920.27 : 4,029.96 = 1,872.33 : x
  2. Step 2: Convert to fraction form
    2,920.27/4,029.96 = 1,872.33/x
  3. Step 3: Cross multiply
    2,920.27x = 4,029.96 × 1,872.33
  4. Step 4: Simplify right side
    2,920.27x = 7,545,415.01
  5. Step 5: Solve for x
    x = 7,545,415.01/2,920.27
  6. Step 6: Final answer
    x = 2,583.81

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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.