Home / 5,123.11-7,686.54-2,162.30

Finding the Fourth Proportional to 5,123.11, 7,686.54 and 2,162.30

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Solution

The fourth proportional to 5,123.11, 7,686.54 and 2,162.30 is: 3,244.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,123.11 : 7,686.54 = 2,162.30 : x
  2. Step 2: Convert to fraction form
    5,123.11/7,686.54 = 2,162.30/x
  3. Step 3: Cross multiply
    5,123.11x = 7,686.54 × 2,162.30
  4. Step 4: Simplify right side
    5,123.11x = 16,620,605.44
  5. Step 5: Solve for x
    x = 16,620,605.44/5,123.11
  6. Step 6: Final answer
    x = 3,244.24

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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.