Home / 3,421.67-5,133.04-1,112.63

Finding the Fourth Proportional to 3,421.67, 5,133.04 and 1,112.63

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Solution

The fourth proportional to 3,421.67, 5,133.04 and 1,112.63 is: 1,669.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,421.67 : 5,133.04 = 1,112.63 : x
  2. Step 2: Convert to fraction form
    3,421.67/5,133.04 = 1,112.63/x
  3. Step 3: Cross multiply
    3,421.67x = 5,133.04 × 1,112.63
  4. Step 4: Simplify right side
    3,421.67x = 5,711,145.85
  5. Step 5: Solve for x
    x = 5,711,145.85/3,421.67
  6. Step 6: Final answer
    x = 1,669.11

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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.