Home / 4,120.45-6,181.46-1,655.46

Finding the Fourth Proportional to 4,120.45, 6,181.46 and 1,655.46

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Solution

The fourth proportional to 4,120.45, 6,181.46 and 1,655.46 is: 2,483.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,120.45 : 6,181.46 = 1,655.46 : x
  2. Step 2: Convert to fraction form
    4,120.45/6,181.46 = 1,655.46/x
  3. Step 3: Cross multiply
    4,120.45x = 6,181.46 × 1,655.46
  4. Step 4: Simplify right side
    4,120.45x = 10,233,170.43
  5. Step 5: Solve for x
    x = 10,233,170.43/4,120.45
  6. Step 6: Final answer
    x = 2,483.51

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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.