Home / 2,420.13-3,628.47-1,249.65

Finding the Fourth Proportional to 2,420.13, 3,628.47 and 1,249.65

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Solution

The fourth proportional to 2,420.13, 3,628.47 and 1,249.65 is: 1,873.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,420.13 : 3,628.47 = 1,249.65 : x
  2. Step 2: Convert to fraction form
    2,420.13/3,628.47 = 1,249.65/x
  3. Step 3: Cross multiply
    2,420.13x = 3,628.47 × 1,249.65
  4. Step 4: Simplify right side
    2,420.13x = 4,534,317.54
  5. Step 5: Solve for x
    x = 4,534,317.54/2,420.13
  6. Step 6: Final answer
    x = 1,873.58

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.