Home / 3,133.80-4,703.10-1,161.30

Finding the Fourth Proportional to 3,133.80, 4,703.10 and 1,161.30

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Solution

The fourth proportional to 3,133.80, 4,703.10 and 1,161.30 is: 1,742.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,133.80 : 4,703.10 = 1,161.30 : x
  2. Step 2: Convert to fraction form
    3,133.80/4,703.10 = 1,161.30/x
  3. Step 3: Cross multiply
    3,133.80x = 4,703.10 × 1,161.30
  4. Step 4: Simplify right side
    3,133.80x = 5,461,710.03
  5. Step 5: Solve for x
    x = 5,461,710.03/3,133.80
  6. Step 6: Final answer
    x = 1,742.84

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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.