Home / 4,123.18-5,682.28-2,942.20

Finding the Fourth Proportional to 4,123.18, 5,682.28 and 2,942.20

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Solution

The fourth proportional to 4,123.18, 5,682.28 and 2,942.20 is: 4,054.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,123.18 : 5,682.28 = 2,942.20 : x
  2. Step 2: Convert to fraction form
    4,123.18/5,682.28 = 2,942.20/x
  3. Step 3: Cross multiply
    4,123.18x = 5,682.28 × 2,942.20
  4. Step 4: Simplify right side
    4,123.18x = 16,718,404.22
  5. Step 5: Solve for x
    x = 16,718,404.22/4,123.18
  6. Step 6: Final answer
    x = 4,054.74

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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.