Home / 2,211.78-3,051.58-1,327.26

Finding the Fourth Proportional to 2,211.78, 3,051.58 and 1,327.26

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Solution

The fourth proportional to 2,211.78, 3,051.58 and 1,327.26 is: 1,831.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,211.78 : 3,051.58 = 1,327.26 : x
  2. Step 2: Convert to fraction form
    2,211.78/3,051.58 = 1,327.26/x
  3. Step 3: Cross multiply
    2,211.78x = 3,051.58 × 1,327.26
  4. Step 4: Simplify right side
    2,211.78x = 4,050,240.07
  5. Step 5: Solve for x
    x = 4,050,240.07/2,211.78
  6. Step 6: Final answer
    x = 1,831.21

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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.