Home / 2,809.16-4,213.49-1,249.23

Finding the Fourth Proportional to 2,809.16, 4,213.49 and 1,249.23

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Solution

The fourth proportional to 2,809.16, 4,213.49 and 1,249.23 is: 1,873.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,809.16 : 4,213.49 = 1,249.23 : x
  2. Step 2: Convert to fraction form
    2,809.16/4,213.49 = 1,249.23/x
  3. Step 3: Cross multiply
    2,809.16x = 4,213.49 × 1,249.23
  4. Step 4: Simplify right side
    2,809.16x = 5,263,627.67
  5. Step 5: Solve for x
    x = 5,263,627.67/2,809.16
  6. Step 6: Final answer
    x = 1,873.74

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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.