Home / 1,840.39-2,540.67-1,168.87

Finding the Fourth Proportional to 1,840.39, 2,540.67 and 1,168.87

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Solution

The fourth proportional to 1,840.39, 2,540.67 and 1,168.87 is: 1,613.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,840.39 : 2,540.67 = 1,168.87 : x
  2. Step 2: Convert to fraction form
    1,840.39/2,540.67 = 1,168.87/x
  3. Step 3: Cross multiply
    1,840.39x = 2,540.67 × 1,168.87
  4. Step 4: Simplify right side
    1,840.39x = 2,969,712.94
  5. Step 5: Solve for x
    x = 2,969,712.94/1,840.39
  6. Step 6: Final answer
    x = 1,613.63

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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.