Home / 1,425.24-2,135.79-603.06

Finding the Fourth Proportional to 1,425.24, 2,135.79 and 603.06

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Solution

The fourth proportional to 1,425.24, 2,135.79 and 603.06 is: 903.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,425.24 : 2,135.79 = 603.06 : x
  2. Step 2: Convert to fraction form
    1,425.24/2,135.79 = 603.06/x
  3. Step 3: Cross multiply
    1,425.24x = 2,135.79 × 603.06
  4. Step 4: Simplify right side
    1,425.24x = 1,288,009.52
  5. Step 5: Solve for x
    x = 1,288,009.52/1,425.24
  6. Step 6: Final answer
    x = 903.71

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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.