Home / 1,291.14-1,936.32-366.63

Finding the Fourth Proportional to 1,291.14, 1,936.32 and 366.63

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Solution

The fourth proportional to 1,291.14, 1,936.32 and 366.63 is: 549.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,291.14 : 1,936.32 = 366.63 : x
  2. Step 2: Convert to fraction form
    1,291.14/1,936.32 = 366.63/x
  3. Step 3: Cross multiply
    1,291.14x = 1,936.32 × 366.63
  4. Step 4: Simplify right side
    1,291.14x = 709,913.00
  5. Step 5: Solve for x
    x = 709,913.00/1,291.14
  6. Step 6: Final answer
    x = 549.83

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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.