Home / 1,042.23-1,436.30-746.99

Finding the Fourth Proportional to 1,042.23, 1,436.30 and 746.99

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Solution

The fourth proportional to 1,042.23, 1,436.30 and 746.99 is: 1,029.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,042.23 : 1,436.30 = 746.99 : x
  2. Step 2: Convert to fraction form
    1,042.23/1,436.30 = 746.99/x
  3. Step 3: Cross multiply
    1,042.23x = 1,436.30 × 746.99
  4. Step 4: Simplify right side
    1,042.23x = 1,072,890.82
  5. Step 5: Solve for x
    x = 1,072,890.82/1,042.23
  6. Step 6: Final answer
    x = 1,029.42

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.