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Finding the Fourth Proportional to 3,950.61, 5,913.05 and 2,910.20

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Solution

The fourth proportional to 3,950.61, 5,913.05 and 2,910.20 is: 4,355.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,950.61 : 5,913.05 = 2,910.20 : x
  2. Step 2: Convert to fraction form
    3,950.61/5,913.05 = 2,910.20/x
  3. Step 3: Cross multiply
    3,950.61x = 5,913.05 × 2,910.20
  4. Step 4: Simplify right side
    3,950.61x = 17,208,158.11
  5. Step 5: Solve for x
    x = 17,208,158.11/3,950.61
  6. Step 6: Final answer
    x = 4,355.82

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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.