Home / 1,136.16-1,701.36-790.56

Finding the Fourth Proportional to 1,136.16, 1,701.36 and 790.56

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Solution

The fourth proportional to 1,136.16, 1,701.36 and 790.56 is: 1,183.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,136.16 : 1,701.36 = 790.56 : x
  2. Step 2: Convert to fraction form
    1,136.16/1,701.36 = 790.56/x
  3. Step 3: Cross multiply
    1,136.16x = 1,701.36 × 790.56
  4. Step 4: Simplify right side
    1,136.16x = 1,345,027.16
  5. Step 5: Solve for x
    x = 1,345,027.16/1,136.16
  6. Step 6: Final answer
    x = 1,183.84

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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.