Home / 1,169.37-1,616.76-1,117.73

Finding the Fourth Proportional to 1,169.37, 1,616.76 and 1,117.73

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Solution

The fourth proportional to 1,169.37, 1,616.76 and 1,117.73 is: 1,545.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,169.37 : 1,616.76 = 1,117.73 : x
  2. Step 2: Convert to fraction form
    1,169.37/1,616.76 = 1,117.73/x
  3. Step 3: Cross multiply
    1,169.37x = 1,616.76 × 1,117.73
  4. Step 4: Simplify right side
    1,169.37x = 1,807,105.20
  5. Step 5: Solve for x
    x = 1,807,105.20/1,169.37
  6. Step 6: Final answer
    x = 1,545.37

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Half scale
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Double scale
Find fourth proportional to 1,170.37, 1,618.14 and 1,118.73
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1.5x scale

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.