Home / 1,862.19-2,790.96-937.98

Finding the Fourth Proportional to 1,862.19, 2,790.96 and 937.98

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Solution

The fourth proportional to 1,862.19, 2,790.96 and 937.98 is: 1,405.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,862.19 : 2,790.96 = 937.98 : x
  2. Step 2: Convert to fraction form
    1,862.19/2,790.96 = 937.98/x
  3. Step 3: Cross multiply
    1,862.19x = 2,790.96 × 937.98
  4. Step 4: Simplify right side
    1,862.19x = 2,617,861.14
  5. Step 5: Solve for x
    x = 2,617,861.14/1,862.19
  6. Step 6: Final answer
    x = 1,405.80

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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.