Home / 3,261.31-4,887.64-1,776.72

Finding the Fourth Proportional to 3,261.31, 4,887.64 and 1,776.72

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Solution

The fourth proportional to 3,261.31, 4,887.64 and 1,776.72 is: 2,662.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,261.31 : 4,887.64 = 1,776.72 : x
  2. Step 2: Convert to fraction form
    3,261.31/4,887.64 = 1,776.72/x
  3. Step 3: Cross multiply
    3,261.31x = 4,887.64 × 1,776.72
  4. Step 4: Simplify right side
    3,261.31x = 8,683,975.52
  5. Step 5: Solve for x
    x = 8,683,975.52/3,261.31
  6. Step 6: Final answer
    x = 2,662.73

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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.