Home / 1,190.35-1,786.14-574.58

Finding the Fourth Proportional to 1,190.35, 1,786.14 and 574.58

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Solution

The fourth proportional to 1,190.35, 1,786.14 and 574.58 is: 862.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,190.35 : 1,786.14 = 574.58 : x
  2. Step 2: Convert to fraction form
    1,190.35/1,786.14 = 574.58/x
  3. Step 3: Cross multiply
    1,190.35x = 1,786.14 × 574.58
  4. Step 4: Simplify right side
    1,190.35x = 1,026,277.45
  5. Step 5: Solve for x
    x = 1,026,277.45/1,190.35
  6. Step 6: Final answer
    x = 862.16

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.