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Finding the Fourth Proportional to 6,145.05, 8,479.92 and 3,492.63

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Solution

The fourth proportional to 6,145.05, 8,479.92 and 3,492.63 is: 4,819.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,145.05 : 8,479.92 = 3,492.63 : x
  2. Step 2: Convert to fraction form
    6,145.05/8,479.92 = 3,492.63/x
  3. Step 3: Cross multiply
    6,145.05x = 8,479.92 × 3,492.63
  4. Step 4: Simplify right side
    6,145.05x = 29,617,222.99
  5. Step 5: Solve for x
    x = 29,617,222.99/6,145.05
  6. Step 6: Final answer
    x = 4,819.69

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.