Home / 1,136.35-1,570.98-1,125.97

Finding the Fourth Proportional to 1,136.35, 1,570.98 and 1,125.97

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Solution

The fourth proportional to 1,136.35, 1,570.98 and 1,125.97 is: 1,556.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,136.35 : 1,570.98 = 1,125.97 : x
  2. Step 2: Convert to fraction form
    1,136.35/1,570.98 = 1,125.97/x
  3. Step 3: Cross multiply
    1,136.35x = 1,570.98 × 1,125.97
  4. Step 4: Simplify right side
    1,136.35x = 1,768,885.48
  5. Step 5: Solve for x
    x = 1,768,885.48/1,136.35
  6. Step 6: Final answer
    x = 1,556.64

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.