Home / 2,940.06-4,056.48-1,821.05

Finding the Fourth Proportional to 2,940.06, 4,056.48 and 1,821.05

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Solution

The fourth proportional to 2,940.06, 4,056.48 and 1,821.05 is: 2,512.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,940.06 : 4,056.48 = 1,821.05 : x
  2. Step 2: Convert to fraction form
    2,940.06/4,056.48 = 1,821.05/x
  3. Step 3: Cross multiply
    2,940.06x = 4,056.48 × 1,821.05
  4. Step 4: Simplify right side
    2,940.06x = 7,387,047.83
  5. Step 5: Solve for x
    x = 7,387,047.83/2,940.06
  6. Step 6: Final answer
    x = 2,512.55

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.