Home / 6,425.40-9,638.10-2,960.76

Finding the Fourth Proportional to 6,425.40, 9,638.10 and 2,960.76

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Solution

The fourth proportional to 6,425.40, 9,638.10 and 2,960.76 is: 4,441.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,425.40 : 9,638.10 = 2,960.76 : x
  2. Step 2: Convert to fraction form
    6,425.40/9,638.10 = 2,960.76/x
  3. Step 3: Cross multiply
    6,425.40x = 9,638.10 × 2,960.76
  4. Step 4: Simplify right side
    6,425.40x = 28,536,100.96
  5. Step 5: Solve for x
    x = 28,536,100.96/6,425.40
  6. Step 6: Final answer
    x = 4,441.14

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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.