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Finding the Fourth Proportional to 6,145.39, 8,480.63 and 3,492.80

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Solution

The fourth proportional to 6,145.39, 8,480.63 and 3,492.80 is: 4,820.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,145.39 : 8,480.63 = 3,492.80 : x
  2. Step 2: Convert to fraction form
    6,145.39/8,480.63 = 3,492.80/x
  3. Step 3: Cross multiply
    6,145.39x = 8,480.63 × 3,492.80
  4. Step 4: Simplify right side
    6,145.39x = 29,621,144.46
  5. Step 5: Solve for x
    x = 29,621,144.46/6,145.39
  6. Step 6: Final answer
    x = 4,820.06

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