Home / 2,154.56-3,228.16-1,181.36

Finding the Fourth Proportional to 2,154.56, 3,228.16 and 1,181.36

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Solution

The fourth proportional to 2,154.56, 3,228.16 and 1,181.36 is: 1,770.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,154.56 : 3,228.16 = 1,181.36 : x
  2. Step 2: Convert to fraction form
    2,154.56/3,228.16 = 1,181.36/x
  3. Step 3: Cross multiply
    2,154.56x = 3,228.16 × 1,181.36
  4. Step 4: Simplify right side
    2,154.56x = 3,813,619.10
  5. Step 5: Solve for x
    x = 3,813,619.10/2,154.56
  6. Step 6: Final answer
    x = 1,770.02

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.