Home / 7,954.21-11,931.99-2,407.60

Finding the Fourth Proportional to 7,954.21, 11,931.99 and 2,407.60

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Solution

The fourth proportional to 7,954.21, 11,931.99 and 2,407.60 is: 3,611.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,954.21 : 11,931.99 = 2,407.60 : x
  2. Step 2: Convert to fraction form
    7,954.21/11,931.99 = 2,407.60/x
  3. Step 3: Cross multiply
    7,954.21x = 11,931.99 × 2,407.60
  4. Step 4: Simplify right side
    7,954.21x = 28,727,459.12
  5. Step 5: Solve for x
    x = 28,727,459.12/7,954.21
  6. Step 6: Final answer
    x = 3,611.60

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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.