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Finding the Fourth Proportional to 2,008.53, 3,010.50 and 775.31

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Solution

The fourth proportional to 2,008.53, 3,010.50 and 775.31 is: 1,162.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,008.53 : 3,010.50 = 775.31 : x
  2. Step 2: Convert to fraction form
    2,008.53/3,010.50 = 775.31/x
  3. Step 3: Cross multiply
    2,008.53x = 3,010.50 × 775.31
  4. Step 4: Simplify right side
    2,008.53x = 2,334,055.70
  5. Step 5: Solve for x
    x = 2,334,055.70/2,008.53
  6. Step 6: Final answer
    x = 1,162.07

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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.