Home / 1,029.17-1,418.57-697.47

Finding the Fourth Proportional to 1,029.17, 1,418.57 and 697.47

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Solution

The fourth proportional to 1,029.17, 1,418.57 and 697.47 is: 961.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,029.17 : 1,418.57 = 697.47 : x
  2. Step 2: Convert to fraction form
    1,029.17/1,418.57 = 697.47/x
  3. Step 3: Cross multiply
    1,029.17x = 1,418.57 × 697.47
  4. Step 4: Simplify right side
    1,029.17x = 989,410.02
  5. Step 5: Solve for x
    x = 989,410.02/1,029.17
  6. Step 6: Final answer
    x = 961.37

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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.