Home / 2,848.10-3,930.66-1,728.95

Finding the Fourth Proportional to 2,848.10, 3,930.66 and 1,728.95

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Solution

The fourth proportional to 2,848.10, 3,930.66 and 1,728.95 is: 2,386.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,848.10 : 3,930.66 = 1,728.95 : x
  2. Step 2: Convert to fraction form
    2,848.10/3,930.66 = 1,728.95/x
  3. Step 3: Cross multiply
    2,848.10x = 3,930.66 × 1,728.95
  4. Step 4: Simplify right side
    2,848.10x = 6,795,914.61
  5. Step 5: Solve for x
    x = 6,795,914.61/2,848.10
  6. Step 6: Final answer
    x = 2,386.12

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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.