Home / 2,758.22-4,130.58-1,781.36

Finding the Fourth Proportional to 2,758.22, 4,130.58 and 1,781.36

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Solution

The fourth proportional to 2,758.22, 4,130.58 and 1,781.36 is: 2,667.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,758.22 : 4,130.58 = 1,781.36 : x
  2. Step 2: Convert to fraction form
    2,758.22/4,130.58 = 1,781.36/x
  3. Step 3: Cross multiply
    2,758.22x = 4,130.58 × 1,781.36
  4. Step 4: Simplify right side
    2,758.22x = 7,358,049.99
  5. Step 5: Solve for x
    x = 7,358,049.99/2,758.22
  6. Step 6: Final answer
    x = 2,667.68

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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.