Home / 2,180.39-3,008.40-1,341.23

Finding the Fourth Proportional to 2,180.39, 3,008.40 and 1,341.23

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Solution

The fourth proportional to 2,180.39, 3,008.40 and 1,341.23 is: 1,850.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,180.39 : 3,008.40 = 1,341.23 : x
  2. Step 2: Convert to fraction form
    2,180.39/3,008.40 = 1,341.23/x
  3. Step 3: Cross multiply
    2,180.39x = 3,008.40 × 1,341.23
  4. Step 4: Simplify right side
    2,180.39x = 4,034,956.33
  5. Step 5: Solve for x
    x = 4,034,956.33/2,180.39
  6. Step 6: Final answer
    x = 1,850.57

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Half scale
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Double scale
Find fourth proportional to 2,181.39, 3,009.78 and 1,342.23
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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.