Home / 3,057.47-4,219.31-1,660.21

Finding the Fourth Proportional to 3,057.47, 4,219.31 and 1,660.21

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Solution

The fourth proportional to 3,057.47, 4,219.31 and 1,660.21 is: 2,291.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,057.47 : 4,219.31 = 1,660.21 : x
  2. Step 2: Convert to fraction form
    3,057.47/4,219.31 = 1,660.21/x
  3. Step 3: Cross multiply
    3,057.47x = 4,219.31 × 1,660.21
  4. Step 4: Simplify right side
    3,057.47x = 7,004,932.35
  5. Step 5: Solve for x
    x = 7,004,932.35/3,057.47
  6. Step 6: Final answer
    x = 2,291.09

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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.