Home / 3,421.37-5,132.76-1,081.99

Finding the Fourth Proportional to 3,421.37, 5,132.76 and 1,081.99

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Solution

The fourth proportional to 3,421.37, 5,132.76 and 1,081.99 is: 1,623.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,421.37 : 5,132.76 = 1,081.99 : x
  2. Step 2: Convert to fraction form
    3,421.37/5,132.76 = 1,081.99/x
  3. Step 3: Cross multiply
    3,421.37x = 5,132.76 × 1,081.99
  4. Step 4: Simplify right side
    3,421.37x = 5,553,594.99
  5. Step 5: Solve for x
    x = 5,553,594.99/3,421.37
  6. Step 6: Final answer
    x = 1,623.21

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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.