Home / 1,314.45-1,972.46-1,179.99

Finding the Fourth Proportional to 1,314.45, 1,972.46 and 1,179.99

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Solution

The fourth proportional to 1,314.45, 1,972.46 and 1,179.99 is: 1,770.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,314.45 : 1,972.46 = 1,179.99 : x
  2. Step 2: Convert to fraction form
    1,314.45/1,972.46 = 1,179.99/x
  3. Step 3: Cross multiply
    1,314.45x = 1,972.46 × 1,179.99
  4. Step 4: Simplify right side
    1,314.45x = 2,327,483.08
  5. Step 5: Solve for x
    x = 2,327,483.08/1,314.45
  6. Step 6: Final answer
    x = 1,770.69

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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.