Home / 2,775.09-3,828.77-1,671.09

Finding the Fourth Proportional to 2,775.09, 3,828.77 and 1,671.09

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Solution

The fourth proportional to 2,775.09, 3,828.77 and 1,671.09 is: 2,305.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,775.09 : 3,828.77 = 1,671.09 : x
  2. Step 2: Convert to fraction form
    2,775.09/3,828.77 = 1,671.09/x
  3. Step 3: Cross multiply
    2,775.09x = 3,828.77 × 1,671.09
  4. Step 4: Simplify right side
    2,775.09x = 6,398,219.26
  5. Step 5: Solve for x
    x = 6,398,219.26/2,775.09
  6. Step 6: Final answer
    x = 2,305.59

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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.