Home / 2,558.21-3,529.13-1,661.89

Finding the Fourth Proportional to 2,558.21, 3,529.13 and 1,661.89

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Solution

The fourth proportional to 2,558.21, 3,529.13 and 1,661.89 is: 2,292.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,558.21 : 3,529.13 = 1,661.89 : x
  2. Step 2: Convert to fraction form
    2,558.21/3,529.13 = 1,661.89/x
  3. Step 3: Cross multiply
    2,558.21x = 3,529.13 × 1,661.89
  4. Step 4: Simplify right side
    2,558.21x = 5,865,008.21
  5. Step 5: Solve for x
    x = 5,865,008.21/2,558.21
  6. Step 6: Final answer
    x = 2,292.63

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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.