Home / 6,315.28-9,478.77-3,197.48

Finding the Fourth Proportional to 6,315.28, 9,478.77 and 3,197.48

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Solution

The fourth proportional to 6,315.28, 9,478.77 and 3,197.48 is: 4,799.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,315.28 : 9,478.77 = 3,197.48 : x
  2. Step 2: Convert to fraction form
    6,315.28/9,478.77 = 3,197.48/x
  3. Step 3: Cross multiply
    6,315.28x = 9,478.77 × 3,197.48
  4. Step 4: Simplify right side
    6,315.28x = 30,308,201.20
  5. Step 5: Solve for x
    x = 30,308,201.20/6,315.28
  6. Step 6: Final answer
    x = 4,799.19

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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.