Home / 2,789.16-3,848.76-1,670.07

Finding the Fourth Proportional to 2,789.16, 3,848.76 and 1,670.07

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Solution

The fourth proportional to 2,789.16, 3,848.76 and 1,670.07 is: 2,304.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,789.16 : 3,848.76 = 1,670.07 : x
  2. Step 2: Convert to fraction form
    2,789.16/3,848.76 = 1,670.07/x
  3. Step 3: Cross multiply
    2,789.16x = 3,848.76 × 1,670.07
  4. Step 4: Simplify right side
    2,789.16x = 6,427,690.26
  5. Step 5: Solve for x
    x = 6,427,690.26/2,789.16
  6. Step 6: Final answer
    x = 2,304.53

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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.