Home / 3,031.96-4,184.28-2,021.92

Finding the Fourth Proportional to 3,031.96, 4,184.28 and 2,021.92

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Solution

The fourth proportional to 3,031.96, 4,184.28 and 2,021.92 is: 2,790.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,031.96 : 4,184.28 = 2,021.92 : x
  2. Step 2: Convert to fraction form
    3,031.96/4,184.28 = 2,021.92/x
  3. Step 3: Cross multiply
    3,031.96x = 4,184.28 × 2,021.92
  4. Step 4: Simplify right side
    3,031.96x = 8,460,279.42
  5. Step 5: Solve for x
    x = 8,460,279.42/3,031.96
  6. Step 6: Final answer
    x = 2,790.37

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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.