Home / 2,107.10-3,157.09-1,009.06

Finding the Fourth Proportional to 2,107.10, 3,157.09 and 1,009.06

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Solution

The fourth proportional to 2,107.10, 3,157.09 and 1,009.06 is: 1,511.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,107.10 : 3,157.09 = 1,009.06 : x
  2. Step 2: Convert to fraction form
    2,107.10/3,157.09 = 1,009.06/x
  3. Step 3: Cross multiply
    2,107.10x = 3,157.09 × 1,009.06
  4. Step 4: Simplify right side
    2,107.10x = 3,185,693.24
  5. Step 5: Solve for x
    x = 3,185,693.24/2,107.10
  6. Step 6: Final answer
    x = 1,511.89

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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.