Home / 1,968.90-2,956.26-1,314.84

Finding the Fourth Proportional to 1,968.90, 2,956.26 and 1,314.84

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Solution

The fourth proportional to 1,968.90, 2,956.26 and 1,314.84 is: 1,974.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,968.90 : 2,956.26 = 1,314.84 : x
  2. Step 2: Convert to fraction form
    1,968.90/2,956.26 = 1,314.84/x
  3. Step 3: Cross multiply
    1,968.90x = 2,956.26 × 1,314.84
  4. Step 4: Simplify right side
    1,968.90x = 3,887,008.90
  5. Step 5: Solve for x
    x = 3,887,008.90/1,968.90
  6. Step 6: Final answer
    x = 1,974.20

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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.