Home / 2,914.90-4,023.41-1,906.75

Finding the Fourth Proportional to 2,914.90, 4,023.41 and 1,906.75

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Solution

The fourth proportional to 2,914.90, 4,023.41 and 1,906.75 is: 2,631.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,914.90 : 4,023.41 = 1,906.75 : x
  2. Step 2: Convert to fraction form
    2,914.90/4,023.41 = 1,906.75/x
  3. Step 3: Cross multiply
    2,914.90x = 4,023.41 × 1,906.75
  4. Step 4: Simplify right side
    2,914.90x = 7,671,637.02
  5. Step 5: Solve for x
    x = 7,671,637.02/2,914.90
  6. Step 6: Final answer
    x = 2,631.87

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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.