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Finding the Fourth Proportional to 3,888.58, 5,832.33 and 1,115.49

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Solution

The fourth proportional to 3,888.58, 5,832.33 and 1,115.49 is: 1,673.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,888.58 : 5,832.33 = 1,115.49 : x
  2. Step 2: Convert to fraction form
    3,888.58/5,832.33 = 1,115.49/x
  3. Step 3: Cross multiply
    3,888.58x = 5,832.33 × 1,115.49
  4. Step 4: Simplify right side
    3,888.58x = 6,505,905.79
  5. Step 5: Solve for x
    x = 6,505,905.79/3,888.58
  6. Step 6: Final answer
    x = 1,673.08

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1.5x scale

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.