Home / 3,018.78-4,167.18-1,840.26

Finding the Fourth Proportional to 3,018.78, 4,167.18 and 1,840.26

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Solution

The fourth proportional to 3,018.78, 4,167.18 and 1,840.26 is: 2,540.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,018.78 : 4,167.18 = 1,840.26 : x
  2. Step 2: Convert to fraction form
    3,018.78/4,167.18 = 1,840.26/x
  3. Step 3: Cross multiply
    3,018.78x = 4,167.18 × 1,840.26
  4. Step 4: Simplify right side
    3,018.78x = 7,668,694.67
  5. Step 5: Solve for x
    x = 7,668,694.67/3,018.78
  6. Step 6: Final answer
    x = 2,540.33

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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.