Home / 2,418.30-3,335.64-1,920.14

Finding the Fourth Proportional to 2,418.30, 3,335.64 and 1,920.14

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Solution

The fourth proportional to 2,418.30, 3,335.64 and 1,920.14 is: 2,648.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,418.30 : 3,335.64 = 1,920.14 : x
  2. Step 2: Convert to fraction form
    2,418.30/3,335.64 = 1,920.14/x
  3. Step 3: Cross multiply
    2,418.30x = 3,335.64 × 1,920.14
  4. Step 4: Simplify right side
    2,418.30x = 6,404,895.79
  5. Step 5: Solve for x
    x = 6,404,895.79/2,418.30
  6. Step 6: Final answer
    x = 2,648.51

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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.