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Finding the Fourth Proportional to 2,230.65, 3,346.14 and 670.53

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Solution

The fourth proportional to 2,230.65, 3,346.14 and 670.53 is: 1,005.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,230.65 : 3,346.14 = 670.53 : x
  2. Step 2: Convert to fraction form
    2,230.65/3,346.14 = 670.53/x
  3. Step 3: Cross multiply
    2,230.65x = 3,346.14 × 670.53
  4. Step 4: Simplify right side
    2,230.65x = 2,243,687.25
  5. Step 5: Solve for x
    x = 2,243,687.25/2,230.65
  6. Step 6: Final answer
    x = 1,005.84

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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.