Home / 2,674.05-3,690.16-1,555.03

Finding the Fourth Proportional to 2,674.05, 3,690.16 and 1,555.03

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Solution

The fourth proportional to 2,674.05, 3,690.16 and 1,555.03 is: 2,145.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,674.05 : 3,690.16 = 1,555.03 : x
  2. Step 2: Convert to fraction form
    2,674.05/3,690.16 = 1,555.03/x
  3. Step 3: Cross multiply
    2,674.05x = 3,690.16 × 1,555.03
  4. Step 4: Simplify right side
    2,674.05x = 5,738,310.23
  5. Step 5: Solve for x
    x = 5,738,310.23/2,674.05
  6. Step 6: Final answer
    x = 2,145.93

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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.