Home / 3,045.45-4,202.72-1,719.43

Finding the Fourth Proportional to 3,045.45, 4,202.72 and 1,719.43

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Solution

The fourth proportional to 3,045.45, 4,202.72 and 1,719.43 is: 2,372.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,045.45 : 4,202.72 = 1,719.43 : x
  2. Step 2: Convert to fraction form
    3,045.45/4,202.72 = 1,719.43/x
  3. Step 3: Cross multiply
    3,045.45x = 4,202.72 × 1,719.43
  4. Step 4: Simplify right side
    3,045.45x = 7,226,282.85
  5. Step 5: Solve for x
    x = 7,226,282.85/3,045.45
  6. Step 6: Final answer
    x = 2,372.81

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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.