Home / 3,181.56-4,390.52-1,765.25

Finding the Fourth Proportional to 3,181.56, 4,390.52 and 1,765.25

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Solution

The fourth proportional to 3,181.56, 4,390.52 and 1,765.25 is: 2,436.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,181.56 : 4,390.52 = 1,765.25 : x
  2. Step 2: Convert to fraction form
    3,181.56/4,390.52 = 1,765.25/x
  3. Step 3: Cross multiply
    3,181.56x = 4,390.52 × 1,765.25
  4. Step 4: Simplify right side
    3,181.56x = 7,750,334.65
  5. Step 5: Solve for x
    x = 7,750,334.65/3,181.56
  6. Step 6: Final answer
    x = 2,436.02

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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.