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Finding the Fourth Proportional to 2,068.98, 3,102.66 and 607.74

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Solution

The fourth proportional to 2,068.98, 3,102.66 and 607.74 is: 911.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,068.98 : 3,102.66 = 607.74 : x
  2. Step 2: Convert to fraction form
    2,068.98/3,102.66 = 607.74/x
  3. Step 3: Cross multiply
    2,068.98x = 3,102.66 × 607.74
  4. Step 4: Simplify right side
    2,068.98x = 1,885,610.59
  5. Step 5: Solve for x
    x = 1,885,610.59/2,068.98
  6. Step 6: Final answer
    x = 911.37

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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.