Home / 5,386.20-8,047.97-3,898.36

Finding the Fourth Proportional to 5,386.20, 8,047.97 and 3,898.36

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Solution

The fourth proportional to 5,386.20, 8,047.97 and 3,898.36 is: 5,824.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,386.20 : 8,047.97 = 3,898.36 : x
  2. Step 2: Convert to fraction form
    5,386.20/8,047.97 = 3,898.36/x
  3. Step 3: Cross multiply
    5,386.20x = 8,047.97 × 3,898.36
  4. Step 4: Simplify right side
    5,386.20x = 31,373,884.33
  5. Step 5: Solve for x
    x = 31,373,884.33/5,386.20
  6. Step 6: Final answer
    x = 5,824.86

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.