Home / 1,160.15-1,739.79-379.97

Finding the Fourth Proportional to 1,160.15, 1,739.79 and 379.97

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Solution

The fourth proportional to 1,160.15, 1,739.79 and 379.97 is: 569.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,160.15 : 1,739.79 = 379.97 : x
  2. Step 2: Convert to fraction form
    1,160.15/1,739.79 = 379.97/x
  3. Step 3: Cross multiply
    1,160.15x = 1,739.79 × 379.97
  4. Step 4: Simplify right side
    1,160.15x = 661,068.01
  5. Step 5: Solve for x
    x = 661,068.01/1,160.15
  6. Step 6: Final answer
    x = 569.81

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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.