Home / 7,637.21-11,454.43-2,639.58

Finding the Fourth Proportional to 7,637.21, 11,454.43 and 2,639.58

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Solution

The fourth proportional to 7,637.21, 11,454.43 and 2,639.58 is: 3,958.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,637.21 : 11,454.43 = 2,639.58 : x
  2. Step 2: Convert to fraction form
    7,637.21/11,454.43 = 2,639.58/x
  3. Step 3: Cross multiply
    7,637.21x = 11,454.43 × 2,639.58
  4. Step 4: Simplify right side
    7,637.21x = 30,234,884.34
  5. Step 5: Solve for x
    x = 30,234,884.34/7,637.21
  6. Step 6: Final answer
    x = 3,958.89

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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.