Home / 4,909.20-7,358.40-2,568.30

Finding the Fourth Proportional to 4,909.20, 7,358.40 and 2,568.30

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Solution

The fourth proportional to 4,909.20, 7,358.40 and 2,568.30 is: 3,849.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,909.20 : 7,358.40 = 2,568.30 : x
  2. Step 2: Convert to fraction form
    4,909.20/7,358.40 = 2,568.30/x
  3. Step 3: Cross multiply
    4,909.20x = 7,358.40 × 2,568.30
  4. Step 4: Simplify right side
    4,909.20x = 18,898,578.72
  5. Step 5: Solve for x
    x = 18,898,578.72/4,909.20
  6. Step 6: Final answer
    x = 3,849.62

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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.