Home / 3,946.55-5,920.14-1,313.96

Finding the Fourth Proportional to 3,946.55, 5,920.14 and 1,313.96

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Solution

The fourth proportional to 3,946.55, 5,920.14 and 1,313.96 is: 1,971.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,946.55 : 5,920.14 = 1,313.96 : x
  2. Step 2: Convert to fraction form
    3,946.55/5,920.14 = 1,313.96/x
  3. Step 3: Cross multiply
    3,946.55x = 5,920.14 × 1,313.96
  4. Step 4: Simplify right side
    3,946.55x = 7,778,824.68
  5. Step 5: Solve for x
    x = 7,778,824.68/3,946.55
  6. Step 6: Final answer
    x = 1,971.04

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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.