Home / 1,790.35-2,686.10-1,136.30

Finding the Fourth Proportional to 1,790.35, 2,686.10 and 1,136.30

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Solution

The fourth proportional to 1,790.35, 2,686.10 and 1,136.30 is: 1,704.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,790.35 : 2,686.10 = 1,136.30 : x
  2. Step 2: Convert to fraction form
    1,790.35/2,686.10 = 1,136.30/x
  3. Step 3: Cross multiply
    1,790.35x = 2,686.10 × 1,136.30
  4. Step 4: Simplify right side
    1,790.35x = 3,052,223.78
  5. Step 5: Solve for x
    x = 3,052,223.78/1,790.35
  6. Step 6: Final answer
    x = 1,704.82

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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.