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Finding the Fourth Proportional to 3,396.70, 5,099.10 and 1,917.10

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Solution

The fourth proportional to 3,396.70, 5,099.10 and 1,917.10 is: 2,877.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,396.70 : 5,099.10 = 1,917.10 : x
  2. Step 2: Convert to fraction form
    3,396.70/5,099.10 = 1,917.10/x
  3. Step 3: Cross multiply
    3,396.70x = 5,099.10 × 1,917.10
  4. Step 4: Simplify right side
    3,396.70x = 9,775,484.61
  5. Step 5: Solve for x
    x = 9,775,484.61/3,396.70
  6. Step 6: Final answer
    x = 2,877.94

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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.