Home / 1,400.12-2,100.98-1,396.84

Finding the Fourth Proportional to 1,400.12, 2,100.98 and 1,396.84

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Solution

The fourth proportional to 1,400.12, 2,100.98 and 1,396.84 is: 2,096.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,400.12 : 2,100.98 = 1,396.84 : x
  2. Step 2: Convert to fraction form
    1,400.12/2,100.98 = 1,396.84/x
  3. Step 3: Cross multiply
    1,400.12x = 2,100.98 × 1,396.84
  4. Step 4: Simplify right side
    1,400.12x = 2,934,732.90
  5. Step 5: Solve for x
    x = 2,934,732.90/1,400.12
  6. Step 6: Final answer
    x = 2,096.06

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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.