Home / 2,069.06-2,855.91-1,230.36

Finding the Fourth Proportional to 2,069.06, 2,855.91 and 1,230.36

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Solution

The fourth proportional to 2,069.06, 2,855.91 and 1,230.36 is: 1,698.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,069.06 : 2,855.91 = 1,230.36 : x
  2. Step 2: Convert to fraction form
    2,069.06/2,855.91 = 1,230.36/x
  3. Step 3: Cross multiply
    2,069.06x = 2,855.91 × 1,230.36
  4. Step 4: Simplify right side
    2,069.06x = 3,513,798.22
  5. Step 5: Solve for x
    x = 3,513,798.22/2,069.06
  6. Step 6: Final answer
    x = 1,698.25

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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.