Home / 3,425.18-5,134.13-1,780.07

Finding the Fourth Proportional to 3,425.18, 5,134.13 and 1,780.07

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Solution

The fourth proportional to 3,425.18, 5,134.13 and 1,780.07 is: 2,668.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,425.18 : 5,134.13 = 1,780.07 : x
  2. Step 2: Convert to fraction form
    3,425.18/5,134.13 = 1,780.07/x
  3. Step 3: Cross multiply
    3,425.18x = 5,134.13 × 1,780.07
  4. Step 4: Simplify right side
    3,425.18x = 9,139,101.89
  5. Step 5: Solve for x
    x = 9,139,101.89/3,425.18
  6. Step 6: Final answer
    x = 2,668.21

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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.