Home / 3,087.68-4,632.03-979.46

Finding the Fourth Proportional to 3,087.68, 4,632.03 and 979.46

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Solution

The fourth proportional to 3,087.68, 4,632.03 and 979.46 is: 1,469.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,087.68 : 4,632.03 = 979.46 : x
  2. Step 2: Convert to fraction form
    3,087.68/4,632.03 = 979.46/x
  3. Step 3: Cross multiply
    3,087.68x = 4,632.03 × 979.46
  4. Step 4: Simplify right side
    3,087.68x = 4,536,888.10
  5. Step 5: Solve for x
    x = 4,536,888.10/3,087.68
  6. Step 6: Final answer
    x = 1,469.35

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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.