Home / 6,423.90-9,635.88-2,725.20

Finding the Fourth Proportional to 6,423.90, 9,635.88 and 2,725.20

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Solution

The fourth proportional to 6,423.90, 9,635.88 and 2,725.20 is: 4,087.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,423.90 : 9,635.88 = 2,725.20 : x
  2. Step 2: Convert to fraction form
    6,423.90/9,635.88 = 2,725.20/x
  3. Step 3: Cross multiply
    6,423.90x = 9,635.88 × 2,725.20
  4. Step 4: Simplify right side
    6,423.90x = 26,259,700.18
  5. Step 5: Solve for x
    x = 26,259,700.18/6,423.90
  6. Step 6: Final answer
    x = 4,087.81

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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.