Home / 2,764.90-3,816.81-1,771.54

Finding the Fourth Proportional to 2,764.90, 3,816.81 and 1,771.54

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Solution

The fourth proportional to 2,764.90, 3,816.81 and 1,771.54 is: 2,445.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,764.90 : 3,816.81 = 1,771.54 : x
  2. Step 2: Convert to fraction form
    2,764.90/3,816.81 = 1,771.54/x
  3. Step 3: Cross multiply
    2,764.90x = 3,816.81 × 1,771.54
  4. Step 4: Simplify right side
    2,764.90x = 6,761,631.59
  5. Step 5: Solve for x
    x = 6,761,631.59/2,764.90
  6. Step 6: Final answer
    x = 2,445.52

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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.