Home / 1,136.20-1,701.42-941.80

Finding the Fourth Proportional to 1,136.20, 1,701.42 and 941.80

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Solution

The fourth proportional to 1,136.20, 1,701.42 and 941.80 is: 1,410.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,136.20 : 1,701.42 = 941.80 : x
  2. Step 2: Convert to fraction form
    1,136.20/1,701.42 = 941.80/x
  3. Step 3: Cross multiply
    1,136.20x = 1,701.42 × 941.80
  4. Step 4: Simplify right side
    1,136.20x = 1,602,397.36
  5. Step 5: Solve for x
    x = 1,602,397.36/1,136.20
  6. Step 6: Final answer
    x = 1,410.31

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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.