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Finding the Fourth Proportional to 2,074.09, 3,111.14 and 535.09

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Solution

The fourth proportional to 2,074.09, 3,111.14 and 535.09 is: 802.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,074.09 : 3,111.14 = 535.09 : x
  2. Step 2: Convert to fraction form
    2,074.09/3,111.14 = 535.09/x
  3. Step 3: Cross multiply
    2,074.09x = 3,111.14 × 535.09
  4. Step 4: Simplify right side
    2,074.09x = 1,664,739.90
  5. Step 5: Solve for x
    x = 1,664,739.90/2,074.09
  6. Step 6: Final answer
    x = 802.64

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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.