Home / 3,438.82-5,155.31-1,771.05

Finding the Fourth Proportional to 3,438.82, 5,155.31 and 1,771.05

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Solution

The fourth proportional to 3,438.82, 5,155.31 and 1,771.05 is: 2,655.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,438.82 : 5,155.31 = 1,771.05 : x
  2. Step 2: Convert to fraction form
    3,438.82/5,155.31 = 1,771.05/x
  3. Step 3: Cross multiply
    3,438.82x = 5,155.31 × 1,771.05
  4. Step 4: Simplify right side
    3,438.82x = 9,130,335.54
  5. Step 5: Solve for x
    x = 9,130,335.54/3,438.82
  6. Step 6: Final answer
    x = 2,655.08

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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.