Home / 2,421.86-3,629.68-1,762.07

Finding the Fourth Proportional to 2,421.86, 3,629.68 and 1,762.07

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Solution

The fourth proportional to 2,421.86, 3,629.68 and 1,762.07 is: 2,640.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,421.86 : 3,629.68 = 1,762.07 : x
  2. Step 2: Convert to fraction form
    2,421.86/3,629.68 = 1,762.07/x
  3. Step 3: Cross multiply
    2,421.86x = 3,629.68 × 1,762.07
  4. Step 4: Simplify right side
    2,421.86x = 6,395,727.68
  5. Step 5: Solve for x
    x = 6,395,727.68/2,421.86
  6. Step 6: Final answer
    x = 2,640.84

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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.