Home / 1,160.23-1,739.50-379.98

Finding the Fourth Proportional to 1,160.23, 1,739.50 and 379.98

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Solution

The fourth proportional to 1,160.23, 1,739.50 and 379.98 is: 569.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,160.23 : 1,739.50 = 379.98 : x
  2. Step 2: Convert to fraction form
    1,160.23/1,739.50 = 379.98/x
  3. Step 3: Cross multiply
    1,160.23x = 1,739.50 × 379.98
  4. Step 4: Simplify right side
    1,160.23x = 660,974.26
  5. Step 5: Solve for x
    x = 660,974.26/1,160.23
  6. Step 6: Final answer
    x = 569.69

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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.