Home / 2,940.80-4,412.16-1,297.76

Finding the Fourth Proportional to 2,940.80, 4,412.16 and 1,297.76

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Solution

The fourth proportional to 2,940.80, 4,412.16 and 1,297.76 is: 1,947.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,940.80 : 4,412.16 = 1,297.76 : x
  2. Step 2: Convert to fraction form
    2,940.80/4,412.16 = 1,297.76/x
  3. Step 3: Cross multiply
    2,940.80x = 4,412.16 × 1,297.76
  4. Step 4: Simplify right side
    2,940.80x = 5,725,924.76
  5. Step 5: Solve for x
    x = 5,725,924.76/2,940.80
  6. Step 6: Final answer
    x = 1,947.06

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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.