Home / 3,021.34-4,166.28-2,390.86

Finding the Fourth Proportional to 3,021.34, 4,166.28 and 2,390.86

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Solution

The fourth proportional to 3,021.34, 4,166.28 and 2,390.86 is: 3,296.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,021.34 : 4,166.28 = 2,390.86 : x
  2. Step 2: Convert to fraction form
    3,021.34/4,166.28 = 2,390.86/x
  3. Step 3: Cross multiply
    3,021.34x = 4,166.28 × 2,390.86
  4. Step 4: Simplify right side
    3,021.34x = 9,960,992.20
  5. Step 5: Solve for x
    x = 9,960,992.20/3,021.34
  6. Step 6: Final answer
    x = 3,296.88

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.