Home / 1,051.28-1,450.74-579.22

Finding the Fourth Proportional to 1,051.28, 1,450.74 and 579.22

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Solution

The fourth proportional to 1,051.28, 1,450.74 and 579.22 is: 799.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,051.28 : 1,450.74 = 579.22 : x
  2. Step 2: Convert to fraction form
    1,051.28/1,450.74 = 579.22/x
  3. Step 3: Cross multiply
    1,051.28x = 1,450.74 × 579.22
  4. Step 4: Simplify right side
    1,051.28x = 840,296.17
  5. Step 5: Solve for x
    x = 840,296.17/1,051.28
  6. Step 6: Final answer
    x = 799.31

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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.