Home / 6,281.28-9,418.24-2,119.92

Finding the Fourth Proportional to 6,281.28, 9,418.24 and 2,119.92

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Solution

The fourth proportional to 6,281.28, 9,418.24 and 2,119.92 is: 3,178.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,281.28 : 9,418.24 = 2,119.92 : x
  2. Step 2: Convert to fraction form
    6,281.28/9,418.24 = 2,119.92/x
  3. Step 3: Cross multiply
    6,281.28x = 9,418.24 × 2,119.92
  4. Step 4: Simplify right side
    6,281.28x = 19,965,915.34
  5. Step 5: Solve for x
    x = 19,965,915.34/6,281.28
  6. Step 6: Final answer
    x = 3,178.64

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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.