Home / 1,617.39-2,230.57-1,169.14

Finding the Fourth Proportional to 1,617.39, 2,230.57 and 1,169.14

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Solution

The fourth proportional to 1,617.39, 2,230.57 and 1,169.14 is: 1,612.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,617.39 : 2,230.57 = 1,169.14 : x
  2. Step 2: Convert to fraction form
    1,617.39/2,230.57 = 1,169.14/x
  3. Step 3: Cross multiply
    1,617.39x = 2,230.57 × 1,169.14
  4. Step 4: Simplify right side
    1,617.39x = 2,607,848.61
  5. Step 5: Solve for x
    x = 2,607,848.61/1,617.39
  6. Step 6: Final answer
    x = 1,612.38

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Half scale
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Double scale
Find fourth proportional to 1,618.39, 2,231.95 and 1,170.14
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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.