Home / 3,181.49-4,765.01-1,539.20

Finding the Fourth Proportional to 3,181.49, 4,765.01 and 1,539.20

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Solution

The fourth proportional to 3,181.49, 4,765.01 and 1,539.20 is: 2,305.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,181.49 : 4,765.01 = 1,539.20 : x
  2. Step 2: Convert to fraction form
    3,181.49/4,765.01 = 1,539.20/x
  3. Step 3: Cross multiply
    3,181.49x = 4,765.01 × 1,539.20
  4. Step 4: Simplify right side
    3,181.49x = 7,334,271.87
  5. Step 5: Solve for x
    x = 7,334,271.87/3,181.49
  6. Step 6: Final answer
    x = 2,305.30

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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.