Home / 3,884.88-5,360.40-2,313.12

Finding the Fourth Proportional to 3,884.88, 5,360.40 and 2,313.12

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Solution

The fourth proportional to 3,884.88, 5,360.40 and 2,313.12 is: 3,191.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,884.88 : 5,360.40 = 2,313.12 : x
  2. Step 2: Convert to fraction form
    3,884.88/5,360.40 = 2,313.12/x
  3. Step 3: Cross multiply
    3,884.88x = 5,360.40 × 2,313.12
  4. Step 4: Simplify right side
    3,884.88x = 12,399,248.45
  5. Step 5: Solve for x
    x = 12,399,248.45/3,884.88
  6. Step 6: Final answer
    x = 3,191.67

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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.