Home / 2,809.47-4,214.20-1,249.11

Finding the Fourth Proportional to 2,809.47, 4,214.20 and 1,249.11

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Solution

The fourth proportional to 2,809.47, 4,214.20 and 1,249.11 is: 1,873.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,809.47 : 4,214.20 = 1,249.11 : x
  2. Step 2: Convert to fraction form
    2,809.47/4,214.20 = 1,249.11/x
  3. Step 3: Cross multiply
    2,809.47x = 4,214.20 × 1,249.11
  4. Step 4: Simplify right side
    2,809.47x = 5,263,999.36
  5. Step 5: Solve for x
    x = 5,263,999.36/2,809.47
  6. Step 6: Final answer
    x = 1,873.66

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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.