Home / 4,088.72-6,129.30-1,489.84

Finding the Fourth Proportional to 4,088.72, 6,129.30 and 1,489.84

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Solution

The fourth proportional to 4,088.72, 6,129.30 and 1,489.84 is: 2,233.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,088.72 : 6,129.30 = 1,489.84 : x
  2. Step 2: Convert to fraction form
    4,088.72/6,129.30 = 1,489.84/x
  3. Step 3: Cross multiply
    4,088.72x = 6,129.30 × 1,489.84
  4. Step 4: Simplify right side
    4,088.72x = 9,131,676.31
  5. Step 5: Solve for x
    x = 9,131,676.31/4,088.72
  6. Step 6: Final answer
    x = 2,233.38

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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.