Home / 2,572.20-3,852.90-2,021.76

Finding the Fourth Proportional to 2,572.20, 3,852.90 and 2,021.76

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Solution

The fourth proportional to 2,572.20, 3,852.90 and 2,021.76 is: 3,028.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,572.20 : 3,852.90 = 2,021.76 : x
  2. Step 2: Convert to fraction form
    2,572.20/3,852.90 = 2,021.76/x
  3. Step 3: Cross multiply
    2,572.20x = 3,852.90 × 2,021.76
  4. Step 4: Simplify right side
    2,572.20x = 7,789,639.10
  5. Step 5: Solve for x
    x = 7,789,639.10/2,572.20
  6. Step 6: Final answer
    x = 3,028.40

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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.