Home / 5,300.12-7,938.32-4,121.04

Finding the Fourth Proportional to 5,300.12, 7,938.32 and 4,121.04

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Solution

The fourth proportional to 5,300.12, 7,938.32 and 4,121.04 is: 6,172.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,300.12 : 7,938.32 = 4,121.04 : x
  2. Step 2: Convert to fraction form
    5,300.12/7,938.32 = 4,121.04/x
  3. Step 3: Cross multiply
    5,300.12x = 7,938.32 × 4,121.04
  4. Step 4: Simplify right side
    5,300.12x = 32,714,134.25
  5. Step 5: Solve for x
    x = 32,714,134.25/5,300.12
  6. Step 6: Final answer
    x = 6,172.34

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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.