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Finding the Fourth Proportional to 2,975.01, 4,105.13 and 1,698.86

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Solution

The fourth proportional to 2,975.01, 4,105.13 and 1,698.86 is: 2,344.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,975.01 : 4,105.13 = 1,698.86 : x
  2. Step 2: Convert to fraction form
    2,975.01/4,105.13 = 1,698.86/x
  3. Step 3: Cross multiply
    2,975.01x = 4,105.13 × 1,698.86
  4. Step 4: Simplify right side
    2,975.01x = 6,974,012.13
  5. Step 5: Solve for x
    x = 6,974,012.13/2,975.01
  6. Step 6: Final answer
    x = 2,344.20

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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.