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Finding the Fourth Proportional to 7,602.85, 11,401.51 and 2,920.44

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Solution

The fourth proportional to 7,602.85, 11,401.51 and 2,920.44 is: 4,379.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,602.85 : 11,401.51 = 2,920.44 : x
  2. Step 2: Convert to fraction form
    7,602.85/11,401.51 = 2,920.44/x
  3. Step 3: Cross multiply
    7,602.85x = 11,401.51 × 2,920.44
  4. Step 4: Simplify right side
    7,602.85x = 33,297,425.86
  5. Step 5: Solve for x
    x = 33,297,425.86/7,602.85
  6. Step 6: Final answer
    x = 4,379.60

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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.