Home / 3,711.93-5,120.33-2,219.37

Finding the Fourth Proportional to 3,711.93, 5,120.33 and 2,219.37

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Solution

The fourth proportional to 3,711.93, 5,120.33 and 2,219.37 is: 3,061.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,711.93 : 5,120.33 = 2,219.37 : x
  2. Step 2: Convert to fraction form
    3,711.93/5,120.33 = 2,219.37/x
  3. Step 3: Cross multiply
    3,711.93x = 5,120.33 × 2,219.37
  4. Step 4: Simplify right side
    3,711.93x = 11,363,895.70
  5. Step 5: Solve for x
    x = 11,363,895.70/3,711.93
  6. Step 6: Final answer
    x = 3,061.45

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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.