Home / 2,827.36-3,904.72-1,945.44

Finding the Fourth Proportional to 2,827.36, 3,904.72 and 1,945.44

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Solution

The fourth proportional to 2,827.36, 3,904.72 and 1,945.44 is: 2,686.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,827.36 : 3,904.72 = 1,945.44 : x
  2. Step 2: Convert to fraction form
    2,827.36/3,904.72 = 1,945.44/x
  3. Step 3: Cross multiply
    2,827.36x = 3,904.72 × 1,945.44
  4. Step 4: Simplify right side
    2,827.36x = 7,596,398.48
  5. Step 5: Solve for x
    x = 7,596,398.48/2,827.36
  6. Step 6: Final answer
    x = 2,686.75

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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.