Home / 5,321.28-8,021.76-4,964.48

Finding the Fourth Proportional to 5,321.28, 8,021.76 and 4,964.48

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Solution

The fourth proportional to 5,321.28, 8,021.76 and 4,964.48 is: 7,483.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,321.28 : 8,021.76 = 4,964.48 : x
  2. Step 2: Convert to fraction form
    5,321.28/8,021.76 = 4,964.48/x
  3. Step 3: Cross multiply
    5,321.28x = 8,021.76 × 4,964.48
  4. Step 4: Simplify right side
    5,321.28x = 39,823,867.08
  5. Step 5: Solve for x
    x = 39,823,867.08/5,321.28
  6. Step 6: Final answer
    x = 7,483.89

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.