Home / 3,079.89-4,250.58-1,821.36

Finding the Fourth Proportional to 3,079.89, 4,250.58 and 1,821.36

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Solution

The fourth proportional to 3,079.89, 4,250.58 and 1,821.36 is: 2,513.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,079.89 : 4,250.58 = 1,821.36 : x
  2. Step 2: Convert to fraction form
    3,079.89/4,250.58 = 1,821.36/x
  3. Step 3: Cross multiply
    3,079.89x = 4,250.58 × 1,821.36
  4. Step 4: Simplify right side
    3,079.89x = 7,741,836.39
  5. Step 5: Solve for x
    x = 7,741,836.39/3,079.89
  6. Step 6: Final answer
    x = 2,513.67

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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.