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Finding the Fourth Proportional to 7,625.58, 11,438.13 and 2,078.76

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Solution

The fourth proportional to 7,625.58, 11,438.13 and 2,078.76 is: 3,118.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,625.58 : 11,438.13 = 2,078.76 : x
  2. Step 2: Convert to fraction form
    7,625.58/11,438.13 = 2,078.76/x
  3. Step 3: Cross multiply
    7,625.58x = 11,438.13 × 2,078.76
  4. Step 4: Simplify right side
    7,625.58x = 23,777,127.12
  5. Step 5: Solve for x
    x = 23,777,127.12/7,625.58
  6. Step 6: Final answer
    x = 3,118.07

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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.