Home / 3,388.01-5,081.40-1,538.69

Finding the Fourth Proportional to 3,388.01, 5,081.40 and 1,538.69

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Solution

The fourth proportional to 3,388.01, 5,081.40 and 1,538.69 is: 2,307.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,388.01 : 5,081.40 = 1,538.69 : x
  2. Step 2: Convert to fraction form
    3,388.01/5,081.40 = 1,538.69/x
  3. Step 3: Cross multiply
    3,388.01x = 5,081.40 × 1,538.69
  4. Step 4: Simplify right side
    3,388.01x = 7,818,673.96
  5. Step 5: Solve for x
    x = 7,818,673.96/3,388.01
  6. Step 6: Final answer
    x = 2,307.75

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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.