Home / 3,369.58-5,055.15-1,421.86

Finding the Fourth Proportional to 3,369.58, 5,055.15 and 1,421.86

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Solution

The fourth proportional to 3,369.58, 5,055.15 and 1,421.86 is: 2,133.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,369.58 : 5,055.15 = 1,421.86 : x
  2. Step 2: Convert to fraction form
    3,369.58/5,055.15 = 1,421.86/x
  3. Step 3: Cross multiply
    3,369.58x = 5,055.15 × 1,421.86
  4. Step 4: Simplify right side
    3,369.58x = 7,187,715.58
  5. Step 5: Solve for x
    x = 7,187,715.58/3,369.58
  6. Step 6: Final answer
    x = 2,133.12

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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.