Home / 4,120.97-6,181.74-1,655.79

Finding the Fourth Proportional to 4,120.97, 6,181.74 and 1,655.79

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Solution

The fourth proportional to 4,120.97, 6,181.74 and 1,655.79 is: 2,483.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,120.97 : 6,181.74 = 1,655.79 : x
  2. Step 2: Convert to fraction form
    4,120.97/6,181.74 = 1,655.79/x
  3. Step 3: Cross multiply
    4,120.97x = 6,181.74 × 1,655.79
  4. Step 4: Simplify right side
    4,120.97x = 10,235,636.99
  5. Step 5: Solve for x
    x = 10,235,636.99/4,120.97
  6. Step 6: Final answer
    x = 2,483.79

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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.