Home / 3,110.80-4,666.30-1,163.20

Finding the Fourth Proportional to 3,110.80, 4,666.30 and 1,163.20

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Solution

The fourth proportional to 3,110.80, 4,666.30 and 1,163.20 is: 1,744.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,110.80 : 4,666.30 = 1,163.20 : x
  2. Step 2: Convert to fraction form
    3,110.80/4,666.30 = 1,163.20/x
  3. Step 3: Cross multiply
    3,110.80x = 4,666.30 × 1,163.20
  4. Step 4: Simplify right side
    3,110.80x = 5,427,840.16
  5. Step 5: Solve for x
    x = 5,427,840.16/3,110.80
  6. Step 6: Final answer
    x = 1,744.84

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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.