Home / 7,103.21-9,802.04-3,915.87

Finding the Fourth Proportional to 7,103.21, 9,802.04 and 3,915.87

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Solution

The fourth proportional to 7,103.21, 9,802.04 and 3,915.87 is: 5,403.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,103.21 : 9,802.04 = 3,915.87 : x
  2. Step 2: Convert to fraction form
    7,103.21/9,802.04 = 3,915.87/x
  3. Step 3: Cross multiply
    7,103.21x = 9,802.04 × 3,915.87
  4. Step 4: Simplify right side
    7,103.21x = 38,383,514.37
  5. Step 5: Solve for x
    x = 38,383,514.37/7,103.21
  6. Step 6: Final answer
    x = 5,403.69

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.