Home / 2,107.06-2,906.34-1,319.74

Finding the Fourth Proportional to 2,107.06, 2,906.34 and 1,319.74

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Solution

The fourth proportional to 2,107.06, 2,906.34 and 1,319.74 is: 1,820.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,107.06 : 2,906.34 = 1,319.74 : x
  2. Step 2: Convert to fraction form
    2,107.06/2,906.34 = 1,319.74/x
  3. Step 3: Cross multiply
    2,107.06x = 2,906.34 × 1,319.74
  4. Step 4: Simplify right side
    2,107.06x = 3,835,613.15
  5. Step 5: Solve for x
    x = 3,835,613.15/2,107.06
  6. Step 6: Final answer
    x = 1,820.36

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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.