Home / 5,421.89-8,133.38-1,473.21

Finding the Fourth Proportional to 5,421.89, 8,133.38 and 1,473.21

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Solution

The fourth proportional to 5,421.89, 8,133.38 and 1,473.21 is: 2,209.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,421.89 : 8,133.38 = 1,473.21 : x
  2. Step 2: Convert to fraction form
    5,421.89/8,133.38 = 1,473.21/x
  3. Step 3: Cross multiply
    5,421.89x = 8,133.38 × 1,473.21
  4. Step 4: Simplify right side
    5,421.89x = 11,982,180.43
  5. Step 5: Solve for x
    x = 11,982,180.43/5,421.89
  6. Step 6: Final answer
    x = 2,209.96

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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.