Home / 1,051.28-1,450.80-579.16

Finding the Fourth Proportional to 1,051.28, 1,450.80 and 579.16

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Solution

The fourth proportional to 1,051.28, 1,450.80 and 579.16 is: 799.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,051.28 : 1,450.80 = 579.16 : x
  2. Step 2: Convert to fraction form
    1,051.28/1,450.80 = 579.16/x
  3. Step 3: Cross multiply
    1,051.28x = 1,450.80 × 579.16
  4. Step 4: Simplify right side
    1,051.28x = 840,245.33
  5. Step 5: Solve for x
    x = 840,245.33/1,051.28
  6. Step 6: Final answer
    x = 799.26

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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.