Home / 2,140.75-3,206.08-1,796.30

Finding the Fourth Proportional to 2,140.75, 3,206.08 and 1,796.30

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Solution

The fourth proportional to 2,140.75, 3,206.08 and 1,796.30 is: 2,690.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,140.75 : 3,206.08 = 1,796.30 : x
  2. Step 2: Convert to fraction form
    2,140.75/3,206.08 = 1,796.30/x
  3. Step 3: Cross multiply
    2,140.75x = 3,206.08 × 1,796.30
  4. Step 4: Simplify right side
    2,140.75x = 5,759,081.50
  5. Step 5: Solve for x
    x = 5,759,081.50/2,140.75
  6. Step 6: Final answer
    x = 2,690.22

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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.