Home / 5,146.39-7,102.04-2,788.53

Finding the Fourth Proportional to 5,146.39, 7,102.04 and 2,788.53

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Solution

The fourth proportional to 5,146.39, 7,102.04 and 2,788.53 is: 3,848.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,146.39 : 7,102.04 = 2,788.53 : x
  2. Step 2: Convert to fraction form
    5,146.39/7,102.04 = 2,788.53/x
  3. Step 3: Cross multiply
    5,146.39x = 7,102.04 × 2,788.53
  4. Step 4: Simplify right side
    5,146.39x = 19,804,257.93
  5. Step 5: Solve for x
    x = 19,804,257.93/5,146.39
  6. Step 6: Final answer
    x = 3,848.18

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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.