Home / 2,970.26-4,451.51-1,213.21

Finding the Fourth Proportional to 2,970.26, 4,451.51 and 1,213.21

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Solution

The fourth proportional to 2,970.26, 4,451.51 and 1,213.21 is: 1,818.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,970.26 : 4,451.51 = 1,213.21 : x
  2. Step 2: Convert to fraction form
    2,970.26/4,451.51 = 1,213.21/x
  3. Step 3: Cross multiply
    2,970.26x = 4,451.51 × 1,213.21
  4. Step 4: Simplify right side
    2,970.26x = 5,400,608.35
  5. Step 5: Solve for x
    x = 5,400,608.35/2,970.26
  6. Step 6: Final answer
    x = 1,818.23

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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.