Home / 2,238.21-3,355.77-1,140.45

Finding the Fourth Proportional to 2,238.21, 3,355.77 and 1,140.45

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Solution

The fourth proportional to 2,238.21, 3,355.77 and 1,140.45 is: 1,709.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,238.21 : 3,355.77 = 1,140.45 : x
  2. Step 2: Convert to fraction form
    2,238.21/3,355.77 = 1,140.45/x
  3. Step 3: Cross multiply
    2,238.21x = 3,355.77 × 1,140.45
  4. Step 4: Simplify right side
    2,238.21x = 3,827,087.90
  5. Step 5: Solve for x
    x = 3,827,087.90/2,238.21
  6. Step 6: Final answer
    x = 1,709.89

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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.