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Finding the Fourth Proportional to 1,349.51, 2,022.51 and 608.57

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Solution

The fourth proportional to 1,349.51, 2,022.51 and 608.57 is: 912.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,349.51 : 2,022.51 = 608.57 : x
  2. Step 2: Convert to fraction form
    1,349.51/2,022.51 = 608.57/x
  3. Step 3: Cross multiply
    1,349.51x = 2,022.51 × 608.57
  4. Step 4: Simplify right side
    1,349.51x = 1,230,828.80
  5. Step 5: Solve for x
    x = 1,230,828.80/1,349.51
  6. Step 6: Final answer
    x = 912.06

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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.