Home / 2,972.26-4,455.45-1,409.50

Finding the Fourth Proportional to 2,972.26, 4,455.45 and 1,409.50

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Solution

The fourth proportional to 2,972.26, 4,455.45 and 1,409.50 is: 2,112.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,972.26 : 4,455.45 = 1,409.50 : x
  2. Step 2: Convert to fraction form
    2,972.26/4,455.45 = 1,409.50/x
  3. Step 3: Cross multiply
    2,972.26x = 4,455.45 × 1,409.50
  4. Step 4: Simplify right side
    2,972.26x = 6,279,956.78
  5. Step 5: Solve for x
    x = 6,279,956.78/2,972.26
  6. Step 6: Final answer
    x = 2,112.86

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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.