Home / 2,070.36-3,105.54-1,419.12

Finding the Fourth Proportional to 2,070.36, 3,105.54 and 1,419.12

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Solution

The fourth proportional to 2,070.36, 3,105.54 and 1,419.12 is: 2,128.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,070.36 : 3,105.54 = 1,419.12 : x
  2. Step 2: Convert to fraction form
    2,070.36/3,105.54 = 1,419.12/x
  3. Step 3: Cross multiply
    2,070.36x = 3,105.54 × 1,419.12
  4. Step 4: Simplify right side
    2,070.36x = 4,407,133.92
  5. Step 5: Solve for x
    x = 4,407,133.92/2,070.36
  6. Step 6: Final answer
    x = 2,128.68

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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.