Home / 7,639.26-10,540.58-4,990.56

Finding the Fourth Proportional to 7,639.26, 10,540.58 and 4,990.56

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Solution

The fourth proportional to 7,639.26, 10,540.58 and 4,990.56 is: 6,885.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,639.26 : 10,540.58 = 4,990.56 : x
  2. Step 2: Convert to fraction form
    7,639.26/10,540.58 = 4,990.56/x
  3. Step 3: Cross multiply
    7,639.26x = 10,540.58 × 4,990.56
  4. Step 4: Simplify right side
    7,639.26x = 52,603,371.97
  5. Step 5: Solve for x
    x = 52,603,371.97/7,639.26
  6. Step 6: Final answer
    x = 6,885.93

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.