Home / 1,910.45-2,636.26-1,071.05

Finding the Fourth Proportional to 1,910.45, 2,636.26 and 1,071.05

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Solution

The fourth proportional to 1,910.45, 2,636.26 and 1,071.05 is: 1,477.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,910.45 : 2,636.26 = 1,071.05 : x
  2. Step 2: Convert to fraction form
    1,910.45/2,636.26 = 1,071.05/x
  3. Step 3: Cross multiply
    1,910.45x = 2,636.26 × 1,071.05
  4. Step 4: Simplify right side
    1,910.45x = 2,823,550.41
  5. Step 5: Solve for x
    x = 2,823,550.41/1,910.45
  6. Step 6: Final answer
    x = 1,477.95

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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.