Home / 1,396.61-2,095.25-986.54

Finding the Fourth Proportional to 1,396.61, 2,095.25 and 986.54

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Solution

The fourth proportional to 1,396.61, 2,095.25 and 986.54 is: 1,480.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,396.61 : 2,095.25 = 986.54 : x
  2. Step 2: Convert to fraction form
    1,396.61/2,095.25 = 986.54/x
  3. Step 3: Cross multiply
    1,396.61x = 2,095.25 × 986.54
  4. Step 4: Simplify right side
    1,396.61x = 2,067,032.53
  5. Step 5: Solve for x
    x = 2,067,032.53/1,396.61
  6. Step 6: Final answer
    x = 1,480.04

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.