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Finding the Fourth Proportional to 5,099.58, 7,039.17 and 3,919.14

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Solution

The fourth proportional to 5,099.58, 7,039.17 and 3,919.14 is: 5,409.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,099.58 : 7,039.17 = 3,919.14 : x
  2. Step 2: Convert to fraction form
    5,099.58/7,039.17 = 3,919.14/x
  3. Step 3: Cross multiply
    5,099.58x = 7,039.17 × 3,919.14
  4. Step 4: Simplify right side
    5,099.58x = 27,587,492.71
  5. Step 5: Solve for x
    x = 27,587,492.71/5,099.58
  6. Step 6: Final answer
    x = 5,409.76

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.