Home / 1,949.85-2,924.77-1,405.49

Finding the Fourth Proportional to 1,949.85, 2,924.77 and 1,405.49

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Solution

The fourth proportional to 1,949.85, 2,924.77 and 1,405.49 is: 2,108.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,949.85 : 2,924.77 = 1,405.49 : x
  2. Step 2: Convert to fraction form
    1,949.85/2,924.77 = 1,405.49/x
  3. Step 3: Cross multiply
    1,949.85x = 2,924.77 × 1,405.49
  4. Step 4: Simplify right side
    1,949.85x = 4,110,733.80
  5. Step 5: Solve for x
    x = 4,110,733.80/1,949.85
  6. Step 6: Final answer
    x = 2,108.23

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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.