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Finding the Fourth Proportional to 3,950.99, 5,920.80 and 2,902.76

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Solution

The fourth proportional to 3,950.99, 5,920.80 and 2,902.76 is: 4,349.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,950.99 : 5,920.80 = 2,902.76 : x
  2. Step 2: Convert to fraction form
    3,950.99/5,920.80 = 2,902.76/x
  3. Step 3: Cross multiply
    3,950.99x = 5,920.80 × 2,902.76
  4. Step 4: Simplify right side
    3,950.99x = 17,186,661.41
  5. Step 5: Solve for x
    x = 17,186,661.41/3,950.99
  6. Step 6: Final answer
    x = 4,349.96

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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.