Home / 2,101.95-3,155.25-1,776.92

Finding the Fourth Proportional to 2,101.95, 3,155.25 and 1,776.92

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Solution

The fourth proportional to 2,101.95, 3,155.25 and 1,776.92 is: 2,667.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,101.95 : 3,155.25 = 1,776.92 : x
  2. Step 2: Convert to fraction form
    2,101.95/3,155.25 = 1,776.92/x
  3. Step 3: Cross multiply
    2,101.95x = 3,155.25 × 1,776.92
  4. Step 4: Simplify right side
    2,101.95x = 5,606,611.05
  5. Step 5: Solve for x
    x = 5,606,611.05/2,101.95
  6. Step 6: Final answer
    x = 2,667.34

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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.