Home / 1,051.45-1,451.03-579.33

Finding the Fourth Proportional to 1,051.45, 1,451.03 and 579.33

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Solution

The fourth proportional to 1,051.45, 1,451.03 and 579.33 is: 799.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,051.45 : 1,451.03 = 579.33 : x
  2. Step 2: Convert to fraction form
    1,051.45/1,451.03 = 579.33/x
  3. Step 3: Cross multiply
    1,051.45x = 1,451.03 × 579.33
  4. Step 4: Simplify right side
    1,051.45x = 840,622.31
  5. Step 5: Solve for x
    x = 840,622.31/1,051.45
  6. Step 6: Final answer
    x = 799.49

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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.