Home / 2,480.73-3,421.13-1,919.40

Finding the Fourth Proportional to 2,480.73, 3,421.13 and 1,919.40

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Solution

The fourth proportional to 2,480.73, 3,421.13 and 1,919.40 is: 2,647.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,480.73 : 3,421.13 = 1,919.40 : x
  2. Step 2: Convert to fraction form
    2,480.73/3,421.13 = 1,919.40/x
  3. Step 3: Cross multiply
    2,480.73x = 3,421.13 × 1,919.40
  4. Step 4: Simplify right side
    2,480.73x = 6,566,507.33
  5. Step 5: Solve for x
    x = 6,566,507.33/2,480.73
  6. Step 6: Final answer
    x = 2,647.01

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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.