Home / 5,428.58-8,143.46-1,729.94

Finding the Fourth Proportional to 5,428.58, 8,143.46 and 1,729.94

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Solution

The fourth proportional to 5,428.58, 8,143.46 and 1,729.94 is: 2,595.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,428.58 : 8,143.46 = 1,729.94 : x
  2. Step 2: Convert to fraction form
    5,428.58/8,143.46 = 1,729.94/x
  3. Step 3: Cross multiply
    5,428.58x = 8,143.46 × 1,729.94
  4. Step 4: Simplify right side
    5,428.58x = 14,087,708.90
  5. Step 5: Solve for x
    x = 14,087,708.90/5,428.58
  6. Step 6: Final answer
    x = 2,595.10

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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.