Home / 3,038.05-4,190.57-1,917.01

Finding the Fourth Proportional to 3,038.05, 4,190.57 and 1,917.01

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Solution

The fourth proportional to 3,038.05, 4,190.57 and 1,917.01 is: 2,644.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,038.05 : 4,190.57 = 1,917.01 : x
  2. Step 2: Convert to fraction form
    3,038.05/4,190.57 = 1,917.01/x
  3. Step 3: Cross multiply
    3,038.05x = 4,190.57 × 1,917.01
  4. Step 4: Simplify right side
    3,038.05x = 8,033,355.01
  5. Step 5: Solve for x
    x = 8,033,355.01/3,038.05
  6. Step 6: Final answer
    x = 2,644.25

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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.