Home / 2,673.42-3,690.35-1,788.90

Finding the Fourth Proportional to 2,673.42, 3,690.35 and 1,788.90

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Solution

The fourth proportional to 2,673.42, 3,690.35 and 1,788.90 is: 2,469.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,673.42 : 3,690.35 = 1,788.90 : x
  2. Step 2: Convert to fraction form
    2,673.42/3,690.35 = 1,788.90/x
  3. Step 3: Cross multiply
    2,673.42x = 3,690.35 × 1,788.90
  4. Step 4: Simplify right side
    2,673.42x = 6,601,658.17
  5. Step 5: Solve for x
    x = 6,601,658.17/2,673.42
  6. Step 6: Final answer
    x = 2,469.37

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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.