Home / 3,099.14-4,277.56-1,919.50

Finding the Fourth Proportional to 3,099.14, 4,277.56 and 1,919.50

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Solution

The fourth proportional to 3,099.14, 4,277.56 and 1,919.50 is: 2,649.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,099.14 : 4,277.56 = 1,919.50 : x
  2. Step 2: Convert to fraction form
    3,099.14/4,277.56 = 1,919.50/x
  3. Step 3: Cross multiply
    3,099.14x = 4,277.56 × 1,919.50
  4. Step 4: Simplify right side
    3,099.14x = 8,210,776.42
  5. Step 5: Solve for x
    x = 8,210,776.42/3,099.14
  6. Step 6: Final answer
    x = 2,649.37

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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.