Home / 2,698.99-4,047.67-1,399.75

Finding the Fourth Proportional to 2,698.99, 4,047.67 and 1,399.75

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Solution

The fourth proportional to 2,698.99, 4,047.67 and 1,399.75 is: 2,099.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,698.99 : 4,047.67 = 1,399.75 : x
  2. Step 2: Convert to fraction form
    2,698.99/4,047.67 = 1,399.75/x
  3. Step 3: Cross multiply
    2,698.99x = 4,047.67 × 1,399.75
  4. Step 4: Simplify right side
    2,698.99x = 5,665,717.71
  5. Step 5: Solve for x
    x = 5,665,717.71/2,698.99
  6. Step 6: Final answer
    x = 2,099.20

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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.