Home / 1,704.80-2,351.40-1,199.84

Finding the Fourth Proportional to 1,704.80, 2,351.40 and 1,199.84

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Solution

The fourth proportional to 1,704.80, 2,351.40 and 1,199.84 is: 1,654.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,704.80 : 2,351.40 = 1,199.84 : x
  2. Step 2: Convert to fraction form
    1,704.80/2,351.40 = 1,199.84/x
  3. Step 3: Cross multiply
    1,704.80x = 2,351.40 × 1,199.84
  4. Step 4: Simplify right side
    1,704.80x = 2,821,303.78
  5. Step 5: Solve for x
    x = 2,821,303.78/1,704.80
  6. Step 6: Final answer
    x = 1,654.92

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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.