Home / 3,057.45-4,219.26-1,660.20

Finding the Fourth Proportional to 3,057.45, 4,219.26 and 1,660.20

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Solution

The fourth proportional to 3,057.45, 4,219.26 and 1,660.20 is: 2,291.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,057.45 : 4,219.26 = 1,660.20 : x
  2. Step 2: Convert to fraction form
    3,057.45/4,219.26 = 1,660.20/x
  3. Step 3: Cross multiply
    3,057.45x = 4,219.26 × 1,660.20
  4. Step 4: Simplify right side
    3,057.45x = 7,004,807.41
  5. Step 5: Solve for x
    x = 7,004,807.41/3,057.45
  6. Step 6: Final answer
    x = 2,291.06

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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.