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Finding the Fourth Proportional to 2,794.87, 4,190.19 and 1,698.94

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Solution

The fourth proportional to 2,794.87, 4,190.19 and 1,698.94 is: 2,547.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,794.87 : 4,190.19 = 1,698.94 : x
  2. Step 2: Convert to fraction form
    2,794.87/4,190.19 = 1,698.94/x
  3. Step 3: Cross multiply
    2,794.87x = 4,190.19 × 1,698.94
  4. Step 4: Simplify right side
    2,794.87x = 7,118,881.40
  5. Step 5: Solve for x
    x = 7,118,881.40/2,794.87
  6. Step 6: Final answer
    x = 2,547.12

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1.5x scale

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.