Home / 6,145.29-8,479.42-3,492.20

Finding the Fourth Proportional to 6,145.29, 8,479.42 and 3,492.20

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Solution

The fourth proportional to 6,145.29, 8,479.42 and 3,492.20 is: 4,818.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,145.29 : 8,479.42 = 3,492.20 : x
  2. Step 2: Convert to fraction form
    6,145.29/8,479.42 = 3,492.20/x
  3. Step 3: Cross multiply
    6,145.29x = 8,479.42 × 3,492.20
  4. Step 4: Simplify right side
    6,145.29x = 29,611,842.99
  5. Step 5: Solve for x
    x = 29,611,842.99/6,145.29
  6. Step 6: Final answer
    x = 4,818.62

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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.