Home / 6,738.04-10,108.66-2,121

Finding the Fourth Proportional to 6,738.04, 10,108.66 and 2,121

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Solution

The fourth proportional to 6,738.04, 10,108.66 and 2,121 is: 3,182.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,738.04 : 10,108.66 = 2,121 : x
  2. Step 2: Convert to fraction form
    6,738.04/10,108.66 = 2,121/x
  3. Step 3: Cross multiply
    6,738.04x = 10,108.66 × 2,121
  4. Step 4: Simplify right side
    6,738.04x = 21,440,467.86
  5. Step 5: Solve for x
    x = 21,440,467.86/6,738.04
  6. Step 6: Final answer
    x = 3,182.00

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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.