Home / 7,431.75-10,257.71-4,289.76

Finding the Fourth Proportional to 7,431.75, 10,257.71 and 4,289.76

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Solution

The fourth proportional to 7,431.75, 10,257.71 and 4,289.76 is: 5,920.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,431.75 : 10,257.71 = 4,289.76 : x
  2. Step 2: Convert to fraction form
    7,431.75/10,257.71 = 4,289.76/x
  3. Step 3: Cross multiply
    7,431.75x = 10,257.71 × 4,289.76
  4. Step 4: Simplify right side
    7,431.75x = 44,003,092.60
  5. Step 5: Solve for x
    x = 44,003,092.60/7,431.75
  6. Step 6: Final answer
    x = 5,920.96

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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.