Home / 2,421.96-3,342.12-1,373.84

Finding the Fourth Proportional to 2,421.96, 3,342.12 and 1,373.84

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Solution

The fourth proportional to 2,421.96, 3,342.12 and 1,373.84 is: 1,895.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,421.96 : 3,342.12 = 1,373.84 : x
  2. Step 2: Convert to fraction form
    2,421.96/3,342.12 = 1,373.84/x
  3. Step 3: Cross multiply
    2,421.96x = 3,342.12 × 1,373.84
  4. Step 4: Simplify right side
    2,421.96x = 4,591,538.14
  5. Step 5: Solve for x
    x = 4,591,538.14/2,421.96
  6. Step 6: Final answer
    x = 1,895.79

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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.