Home / 2,110.64-2,912.56-1,226.32

Finding the Fourth Proportional to 2,110.64, 2,912.56 and 1,226.32

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Solution

The fourth proportional to 2,110.64, 2,912.56 and 1,226.32 is: 1,692.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,110.64 : 2,912.56 = 1,226.32 : x
  2. Step 2: Convert to fraction form
    2,110.64/2,912.56 = 1,226.32/x
  3. Step 3: Cross multiply
    2,110.64x = 2,912.56 × 1,226.32
  4. Step 4: Simplify right side
    2,110.64x = 3,571,730.58
  5. Step 5: Solve for x
    x = 3,571,730.58/2,110.64
  6. Step 6: Final answer
    x = 1,692.25

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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.