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Finding the Fourth Proportional to 3,880.86, 5,819.35 and 1,934.14

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Solution

The fourth proportional to 3,880.86, 5,819.35 and 1,934.14 is: 2,900.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,880.86 : 5,819.35 = 1,934.14 : x
  2. Step 2: Convert to fraction form
    3,880.86/5,819.35 = 1,934.14/x
  3. Step 3: Cross multiply
    3,880.86x = 5,819.35 × 1,934.14
  4. Step 4: Simplify right side
    3,880.86x = 11,255,437.61
  5. Step 5: Solve for x
    x = 11,255,437.61/3,880.86
  6. Step 6: Final answer
    x = 2,900.24

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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.