Home / 2,386.78-3,292.99-1,442.94

Finding the Fourth Proportional to 2,386.78, 3,292.99 and 1,442.94

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Solution

The fourth proportional to 2,386.78, 3,292.99 and 1,442.94 is: 1,990.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,386.78 : 3,292.99 = 1,442.94 : x
  2. Step 2: Convert to fraction form
    2,386.78/3,292.99 = 1,442.94/x
  3. Step 3: Cross multiply
    2,386.78x = 3,292.99 × 1,442.94
  4. Step 4: Simplify right side
    2,386.78x = 4,751,586.99
  5. Step 5: Solve for x
    x = 4,751,586.99/2,386.78
  6. Step 6: Final answer
    x = 1,990.79

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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.