Home / 2,650.04-3,660.62-1,991.88

Finding the Fourth Proportional to 2,650.04, 3,660.62 and 1,991.88

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Solution

The fourth proportional to 2,650.04, 3,660.62 and 1,991.88 is: 2,751.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,650.04 : 3,660.62 = 1,991.88 : x
  2. Step 2: Convert to fraction form
    2,650.04/3,660.62 = 1,991.88/x
  3. Step 3: Cross multiply
    2,650.04x = 3,660.62 × 1,991.88
  4. Step 4: Simplify right side
    2,650.04x = 7,291,515.77
  5. Step 5: Solve for x
    x = 7,291,515.77/2,650.04
  6. Step 6: Final answer
    x = 2,751.47

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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.