Home / 5,011.80-6,911.98-3,021.92

Finding the Fourth Proportional to 5,011.80, 6,911.98 and 3,021.92

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Solution

The fourth proportional to 5,011.80, 6,911.98 and 3,021.92 is: 4,167.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,011.80 : 6,911.98 = 3,021.92 : x
  2. Step 2: Convert to fraction form
    5,011.80/6,911.98 = 3,021.92/x
  3. Step 3: Cross multiply
    5,011.80x = 6,911.98 × 3,021.92
  4. Step 4: Simplify right side
    5,011.80x = 20,887,450.60
  5. Step 5: Solve for x
    x = 20,887,450.60/5,011.80
  6. Step 6: Final answer
    x = 4,167.65

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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.