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Finding the Fourth Proportional to 3,741.99, 5,612.97 and 2,920.95

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Solution

The fourth proportional to 3,741.99, 5,612.97 and 2,920.95 is: 4,381.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,741.99 : 5,612.97 = 2,920.95 : x
  2. Step 2: Convert to fraction form
    3,741.99/5,612.97 = 2,920.95/x
  3. Step 3: Cross multiply
    3,741.99x = 5,612.97 × 2,920.95
  4. Step 4: Simplify right side
    3,741.99x = 16,395,204.72
  5. Step 5: Solve for x
    x = 16,395,204.72/3,741.99
  6. Step 6: Final answer
    x = 4,381.41

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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.