Home / 1,136.35-1,574.75-1,114.48

Finding the Fourth Proportional to 1,136.35, 1,574.75 and 1,114.48

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Solution

The fourth proportional to 1,136.35, 1,574.75 and 1,114.48 is: 1,544.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,136.35 : 1,574.75 = 1,114.48 : x
  2. Step 2: Convert to fraction form
    1,136.35/1,574.75 = 1,114.48/x
  3. Step 3: Cross multiply
    1,136.35x = 1,574.75 × 1,114.48
  4. Step 4: Simplify right side
    1,136.35x = 1,755,021.81
  5. Step 5: Solve for x
    x = 1,755,021.81/1,136.35
  6. Step 6: Final answer
    x = 1,544.44

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.