Home / 6,865.88-10,300.04-2,489.45

Finding the Fourth Proportional to 6,865.88, 10,300.04 and 2,489.45

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Solution

The fourth proportional to 6,865.88, 10,300.04 and 2,489.45 is: 3,734.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,865.88 : 10,300.04 = 2,489.45 : x
  2. Step 2: Convert to fraction form
    6,865.88/10,300.04 = 2,489.45/x
  3. Step 3: Cross multiply
    6,865.88x = 10,300.04 × 2,489.45
  4. Step 4: Simplify right side
    6,865.88x = 25,641,434.58
  5. Step 5: Solve for x
    x = 25,641,434.58/6,865.88
  6. Step 6: Final answer
    x = 3,734.62

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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.