Home / 4,089.12-6,129.98-1,623.38

Finding the Fourth Proportional to 4,089.12, 6,129.98 and 1,623.38

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Solution

The fourth proportional to 4,089.12, 6,129.98 and 1,623.38 is: 2,433.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,089.12 : 6,129.98 = 1,623.38 : x
  2. Step 2: Convert to fraction form
    4,089.12/6,129.98 = 1,623.38/x
  3. Step 3: Cross multiply
    4,089.12x = 6,129.98 × 1,623.38
  4. Step 4: Simplify right side
    4,089.12x = 9,951,254.25
  5. Step 5: Solve for x
    x = 9,951,254.25/4,089.12
  6. Step 6: Final answer
    x = 2,433.60

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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.