Home / 6,931.20-10,382.88-3,228.48

Finding the Fourth Proportional to 6,931.20, 10,382.88 and 3,228.48

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Solution

The fourth proportional to 6,931.20, 10,382.88 and 3,228.48 is: 4,836.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,931.20 : 10,382.88 = 3,228.48 : x
  2. Step 2: Convert to fraction form
    6,931.20/10,382.88 = 3,228.48/x
  3. Step 3: Cross multiply
    6,931.20x = 10,382.88 × 3,228.48
  4. Step 4: Simplify right side
    6,931.20x = 33,520,920.42
  5. Step 5: Solve for x
    x = 33,520,920.42/6,931.20
  6. Step 6: Final answer
    x = 4,836.24

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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.