Home / 2,418.39-3,338.80-1,857.76

Finding the Fourth Proportional to 2,418.39, 3,338.80 and 1,857.76

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Solution

The fourth proportional to 2,418.39, 3,338.80 and 1,857.76 is: 2,564.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,418.39 : 3,338.80 = 1,857.76 : x
  2. Step 2: Convert to fraction form
    2,418.39/3,338.80 = 1,857.76/x
  3. Step 3: Cross multiply
    2,418.39x = 3,338.80 × 1,857.76
  4. Step 4: Simplify right side
    2,418.39x = 6,202,676.10
  5. Step 5: Solve for x
    x = 6,202,676.10/2,418.39
  6. Step 6: Final answer
    x = 2,564.80

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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.