Home / 6,638.10-9,159.75-3,843.78

Finding the Fourth Proportional to 6,638.10, 9,159.75 and 3,843.78

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Solution

The fourth proportional to 6,638.10, 9,159.75 and 3,843.78 is: 5,303.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,638.10 : 9,159.75 = 3,843.78 : x
  2. Step 2: Convert to fraction form
    6,638.10/9,159.75 = 3,843.78/x
  3. Step 3: Cross multiply
    6,638.10x = 9,159.75 × 3,843.78
  4. Step 4: Simplify right side
    6,638.10x = 35,208,063.86
  5. Step 5: Solve for x
    x = 35,208,063.86/6,638.10
  6. Step 6: Final answer
    x = 5,303.94

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1.5x scale

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.