Home / 2,221.08-3,064.96-1,226.32

Finding the Fourth Proportional to 2,221.08, 3,064.96 and 1,226.32

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Solution

The fourth proportional to 2,221.08, 3,064.96 and 1,226.32 is: 1,692.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,221.08 : 3,064.96 = 1,226.32 : x
  2. Step 2: Convert to fraction form
    2,221.08/3,064.96 = 1,226.32/x
  3. Step 3: Cross multiply
    2,221.08x = 3,064.96 × 1,226.32
  4. Step 4: Simplify right side
    2,221.08x = 3,758,621.75
  5. Step 5: Solve for x
    x = 3,758,621.75/2,221.08
  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.