Home / 5,421.16-8,131.06-1,472.73

Finding the Fourth Proportional to 5,421.16, 8,131.06 and 1,472.73

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Solution

The fourth proportional to 5,421.16, 8,131.06 and 1,472.73 is: 2,208.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,421.16 : 8,131.06 = 1,472.73 : x
  2. Step 2: Convert to fraction form
    5,421.16/8,131.06 = 1,472.73/x
  3. Step 3: Cross multiply
    5,421.16x = 8,131.06 × 1,472.73
  4. Step 4: Simplify right side
    5,421.16x = 11,974,855.99
  5. Step 5: Solve for x
    x = 11,974,855.99/5,421.16
  6. Step 6: Final answer
    x = 2,208.91

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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.