Home / 5,750.39-7,930.91-3,861.41

Finding the Fourth Proportional to 5,750.39, 7,930.91 and 3,861.41

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Solution

The fourth proportional to 5,750.39, 7,930.91 and 3,861.41 is: 5,325.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,750.39 : 7,930.91 = 3,861.41 : x
  2. Step 2: Convert to fraction form
    5,750.39/7,930.91 = 3,861.41/x
  3. Step 3: Cross multiply
    5,750.39x = 7,930.91 × 3,861.41
  4. Step 4: Simplify right side
    5,750.39x = 30,624,465.18
  5. Step 5: Solve for x
    x = 30,624,465.18/5,750.39
  6. Step 6: Final answer
    x = 5,325.63

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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.