Home / 3,887.19-5,387.01-3,813.35

Finding the Fourth Proportional to 3,887.19, 5,387.01 and 3,813.35

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Solution

The fourth proportional to 3,887.19, 5,387.01 and 3,813.35 is: 5,284.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,887.19 : 5,387.01 = 3,813.35 : x
  2. Step 2: Convert to fraction form
    3,887.19/5,387.01 = 3,813.35/x
  3. Step 3: Cross multiply
    3,887.19x = 5,387.01 × 3,813.35
  4. Step 4: Simplify right side
    3,887.19x = 20,542,513.35
  5. Step 5: Solve for x
    x = 20,542,513.35/3,887.19
  6. Step 6: Final answer
    x = 5,284.67

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.