Home / 3,057.45-4,218.77-1,730.87

Finding the Fourth Proportional to 3,057.45, 4,218.77 and 1,730.87

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Solution

The fourth proportional to 3,057.45, 4,218.77 and 1,730.87 is: 2,388.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,057.45 : 4,218.77 = 1,730.87 : x
  2. Step 2: Convert to fraction form
    3,057.45/4,218.77 = 1,730.87/x
  3. Step 3: Cross multiply
    3,057.45x = 4,218.77 × 1,730.87
  4. Step 4: Simplify right side
    3,057.45x = 7,302,112.68
  5. Step 5: Solve for x
    x = 7,302,112.68/3,057.45
  6. Step 6: Final answer
    x = 2,388.30

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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.