Home / 3,572.20-5,351.10-2,477.80

Finding the Fourth Proportional to 3,572.20, 5,351.10 and 2,477.80

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Solution

The fourth proportional to 3,572.20, 5,351.10 and 2,477.80 is: 3,711.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,572.20 : 5,351.10 = 2,477.80 : x
  2. Step 2: Convert to fraction form
    3,572.20/5,351.10 = 2,477.80/x
  3. Step 3: Cross multiply
    3,572.20x = 5,351.10 × 2,477.80
  4. Step 4: Simplify right side
    3,572.20x = 13,258,955.58
  5. Step 5: Solve for x
    x = 13,258,955.58/3,572.20
  6. Step 6: Final answer
    x = 3,711.71

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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.