Home / 3,911.43-5,867.75-1,313.76

Finding the Fourth Proportional to 3,911.43, 5,867.75 and 1,313.76

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Solution

The fourth proportional to 3,911.43, 5,867.75 and 1,313.76 is: 1,970.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,911.43 : 5,867.75 = 1,313.76 : x
  2. Step 2: Convert to fraction form
    3,911.43/5,867.75 = 1,313.76/x
  3. Step 3: Cross multiply
    3,911.43x = 5,867.75 × 1,313.76
  4. Step 4: Simplify right side
    3,911.43x = 7,708,815.24
  5. Step 5: Solve for x
    x = 7,708,815.24/3,911.43
  6. Step 6: Final answer
    x = 1,970.84

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1.5x scale

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.