Home / 5,428.88-8,144.13-1,966.94

Finding the Fourth Proportional to 5,428.88, 8,144.13 and 1,966.94

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Solution

The fourth proportional to 5,428.88, 8,144.13 and 1,966.94 is: 2,950.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,428.88 : 8,144.13 = 1,966.94 : x
  2. Step 2: Convert to fraction form
    5,428.88/8,144.13 = 1,966.94/x
  3. Step 3: Cross multiply
    5,428.88x = 8,144.13 × 1,966.94
  4. Step 4: Simplify right side
    5,428.88x = 16,018,974.34
  5. Step 5: Solve for x
    x = 16,018,974.34/5,428.88
  6. Step 6: Final answer
    x = 2,950.70

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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.