Home / 1,324.62-1,826.64-1,029.78

Finding the Fourth Proportional to 1,324.62, 1,826.64 and 1,029.78

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Solution

The fourth proportional to 1,324.62, 1,826.64 and 1,029.78 is: 1,420.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,324.62 : 1,826.64 = 1,029.78 : x
  2. Step 2: Convert to fraction form
    1,324.62/1,826.64 = 1,029.78/x
  3. Step 3: Cross multiply
    1,324.62x = 1,826.64 × 1,029.78
  4. Step 4: Simplify right side
    1,324.62x = 1,881,037.34
  5. Step 5: Solve for x
    x = 1,881,037.34/1,324.62
  6. Step 6: Final answer
    x = 1,420.06

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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.