Home / 6,381.46-9,574.94-2,219.20

Finding the Fourth Proportional to 6,381.46, 9,574.94 and 2,219.20

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Solution

The fourth proportional to 6,381.46, 9,574.94 and 2,219.20 is: 3,329.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,381.46 : 9,574.94 = 2,219.20 : x
  2. Step 2: Convert to fraction form
    6,381.46/9,574.94 = 2,219.20/x
  3. Step 3: Cross multiply
    6,381.46x = 9,574.94 × 2,219.20
  4. Step 4: Simplify right side
    6,381.46x = 21,248,706.85
  5. Step 5: Solve for x
    x = 21,248,706.85/6,381.46
  6. Step 6: Final answer
    x = 3,329.76

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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.