Home / 1,429.29-2,144.75-607.48

Finding the Fourth Proportional to 1,429.29, 2,144.75 and 607.48

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Solution

The fourth proportional to 1,429.29, 2,144.75 and 607.48 is: 911.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,429.29 : 2,144.75 = 607.48 : x
  2. Step 2: Convert to fraction form
    1,429.29/2,144.75 = 607.48/x
  3. Step 3: Cross multiply
    1,429.29x = 2,144.75 × 607.48
  4. Step 4: Simplify right side
    1,429.29x = 1,302,884.33
  5. Step 5: Solve for x
    x = 1,302,884.33/1,429.29
  6. Step 6: Final answer
    x = 911.56

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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.