Home / 5,146.66-7,102.45-2,788.81

Finding the Fourth Proportional to 5,146.66, 7,102.45 and 2,788.81

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Solution

The fourth proportional to 5,146.66, 7,102.45 and 2,788.81 is: 3,848.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,146.66 : 7,102.45 = 2,788.81 : x
  2. Step 2: Convert to fraction form
    5,146.66/7,102.45 = 2,788.81/x
  3. Step 3: Cross multiply
    5,146.66x = 7,102.45 × 2,788.81
  4. Step 4: Simplify right side
    5,146.66x = 19,807,383.58
  5. Step 5: Solve for x
    x = 19,807,383.58/5,146.66
  6. Step 6: Final answer
    x = 3,848.59

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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.