Home / 1,780.14-2,670.75-1,197.48

Finding the Fourth Proportional to 1,780.14, 2,670.75 and 1,197.48

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Solution

The fourth proportional to 1,780.14, 2,670.75 and 1,197.48 is: 1,796.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,780.14 : 2,670.75 = 1,197.48 : x
  2. Step 2: Convert to fraction form
    1,780.14/2,670.75 = 1,197.48/x
  3. Step 3: Cross multiply
    1,780.14x = 2,670.75 × 1,197.48
  4. Step 4: Simplify right side
    1,780.14x = 3,198,169.71
  5. Step 5: Solve for x
    x = 3,198,169.71/1,780.14
  6. Step 6: Final answer
    x = 1,796.58

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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.