Home / 7,641.21-11,459.41-2,960.90

Finding the Fourth Proportional to 7,641.21, 11,459.41 and 2,960.90

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Solution

The fourth proportional to 7,641.21, 11,459.41 and 2,960.90 is: 4,440.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,641.21 : 11,459.41 = 2,960.90 : x
  2. Step 2: Convert to fraction form
    7,641.21/11,459.41 = 2,960.90/x
  3. Step 3: Cross multiply
    7,641.21x = 11,459.41 × 2,960.90
  4. Step 4: Simplify right side
    7,641.21x = 33,930,167.07
  5. Step 5: Solve for x
    x = 33,930,167.07/7,641.21
  6. Step 6: Final answer
    x = 4,440.42

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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.