Home / 2,150.21-3,225.64-763.43

Finding the Fourth Proportional to 2,150.21, 3,225.64 and 763.43

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Solution

The fourth proportional to 2,150.21, 3,225.64 and 763.43 is: 1,145.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,150.21 : 3,225.64 = 763.43 : x
  2. Step 2: Convert to fraction form
    2,150.21/3,225.64 = 763.43/x
  3. Step 3: Cross multiply
    2,150.21x = 3,225.64 × 763.43
  4. Step 4: Simplify right side
    2,150.21x = 2,462,557.22
  5. Step 5: Solve for x
    x = 2,462,557.22/2,150.21
  6. Step 6: Final answer
    x = 1,145.26

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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.