Home / 3,160.56-4,739.16-1,107.12

Finding the Fourth Proportional to 3,160.56, 4,739.16 and 1,107.12

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Solution

The fourth proportional to 3,160.56, 4,739.16 and 1,107.12 is: 1,660.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,160.56 : 4,739.16 = 1,107.12 : x
  2. Step 2: Convert to fraction form
    3,160.56/4,739.16 = 1,107.12/x
  3. Step 3: Cross multiply
    3,160.56x = 4,739.16 × 1,107.12
  4. Step 4: Simplify right side
    3,160.56x = 5,246,818.82
  5. Step 5: Solve for x
    x = 5,246,818.82/3,160.56
  6. Step 6: Final answer
    x = 1,660.09

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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.