Home / 4,089.96-6,135.11-1,128.65

Finding the Fourth Proportional to 4,089.96, 6,135.11 and 1,128.65

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Solution

The fourth proportional to 4,089.96, 6,135.11 and 1,128.65 is: 1,693.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,089.96 : 6,135.11 = 1,128.65 : x
  2. Step 2: Convert to fraction form
    4,089.96/6,135.11 = 1,128.65/x
  3. Step 3: Cross multiply
    4,089.96x = 6,135.11 × 1,128.65
  4. Step 4: Simplify right side
    4,089.96x = 6,924,355.58
  5. Step 5: Solve for x
    x = 6,924,355.58/4,089.96
  6. Step 6: Final answer
    x = 1,693.01

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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.