Home / 6,389.20-9,589.20-2,496.40

Finding the Fourth Proportional to 6,389.20, 9,589.20 and 2,496.40

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Solution

The fourth proportional to 6,389.20, 9,589.20 and 2,496.40 is: 3,746.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,389.20 : 9,589.20 = 2,496.40 : x
  2. Step 2: Convert to fraction form
    6,389.20/9,589.20 = 2,496.40/x
  3. Step 3: Cross multiply
    6,389.20x = 9,589.20 × 2,496.40
  4. Step 4: Simplify right side
    6,389.20x = 23,938,478.88
  5. Step 5: Solve for x
    x = 23,938,478.88/6,389.20
  6. Step 6: Final answer
    x = 3,746.71

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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.