Home / 1,243.49-1,865.77-377.87

Finding the Fourth Proportional to 1,243.49, 1,865.77 and 377.87

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Solution

The fourth proportional to 1,243.49, 1,865.77 and 377.87 is: 566.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,243.49 : 1,865.77 = 377.87 : x
  2. Step 2: Convert to fraction form
    1,243.49/1,865.77 = 377.87/x
  3. Step 3: Cross multiply
    1,243.49x = 1,865.77 × 377.87
  4. Step 4: Simplify right side
    1,243.49x = 705,008.24
  5. Step 5: Solve for x
    x = 705,008.24/1,243.49
  6. Step 6: Final answer
    x = 566.96

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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.