Home / 6,403.84-9,610.61-3,119.02

Finding the Fourth Proportional to 6,403.84, 9,610.61 and 3,119.02

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Solution

The fourth proportional to 6,403.84, 9,610.61 and 3,119.02 is: 4,680.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,403.84 : 9,610.61 = 3,119.02 : x
  2. Step 2: Convert to fraction form
    6,403.84/9,610.61 = 3,119.02/x
  3. Step 3: Cross multiply
    6,403.84x = 9,610.61 × 3,119.02
  4. Step 4: Simplify right side
    6,403.84x = 29,975,684.80
  5. Step 5: Solve for x
    x = 29,975,684.80/6,403.84
  6. Step 6: Final answer
    x = 4,680.89

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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.