Home / 2,789.02-3,848.07-2,197.72

Finding the Fourth Proportional to 2,789.02, 3,848.07 and 2,197.72

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Solution

The fourth proportional to 2,789.02, 3,848.07 and 2,197.72 is: 3,032.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,789.02 : 3,848.07 = 2,197.72 : x
  2. Step 2: Convert to fraction form
    2,789.02/3,848.07 = 2,197.72/x
  3. Step 3: Cross multiply
    2,789.02x = 3,848.07 × 2,197.72
  4. Step 4: Simplify right side
    2,789.02x = 8,456,980.40
  5. Step 5: Solve for x
    x = 8,456,980.40/2,789.02
  6. Step 6: Final answer
    x = 3,032.24

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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.