Home / 1,816.33-2,506.45-1,186.55

Finding the Fourth Proportional to 1,816.33, 2,506.45 and 1,186.55

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Solution

The fourth proportional to 1,816.33, 2,506.45 and 1,186.55 is: 1,637.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,816.33 : 2,506.45 = 1,186.55 : x
  2. Step 2: Convert to fraction form
    1,816.33/2,506.45 = 1,186.55/x
  3. Step 3: Cross multiply
    1,816.33x = 2,506.45 × 1,186.55
  4. Step 4: Simplify right side
    1,816.33x = 2,974,022.31
  5. Step 5: Solve for x
    x = 2,974,022.31/1,816.33
  6. Step 6: Final answer
    x = 1,637.38

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Half scale
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Double scale
Find fourth proportional to 1,817.33, 2,507.82 and 1,187.55
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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.