Home / 2,789.38-3,848.32-1,654.80

Finding the Fourth Proportional to 2,789.38, 3,848.32 and 1,654.80

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Solution

The fourth proportional to 2,789.38, 3,848.32 and 1,654.80 is: 2,283.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,789.38 : 3,848.32 = 1,654.80 : x
  2. Step 2: Convert to fraction form
    2,789.38/3,848.32 = 1,654.80/x
  3. Step 3: Cross multiply
    2,789.38x = 3,848.32 × 1,654.80
  4. Step 4: Simplify right side
    2,789.38x = 6,368,199.94
  5. Step 5: Solve for x
    x = 6,368,199.94/2,789.38
  6. Step 6: Final answer
    x = 2,283.02

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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.