Home / 1,816.41-2,507.03-1,187.04

Finding the Fourth Proportional to 1,816.41, 2,507.03 and 1,187.04

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Solution

The fourth proportional to 1,816.41, 2,507.03 and 1,187.04 is: 1,638.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,816.41 : 2,507.03 = 1,187.04 : x
  2. Step 2: Convert to fraction form
    1,816.41/2,507.03 = 1,187.04/x
  3. Step 3: Cross multiply
    1,816.41x = 2,507.03 × 1,187.04
  4. Step 4: Simplify right side
    1,816.41x = 2,975,944.89
  5. Step 5: Solve for x
    x = 2,975,944.89/1,816.41
  6. Step 6: Final answer
    x = 1,638.37

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Half scale
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Double scale
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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.