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Finding the Fourth Proportional to 3,210.84, 4,811.22 and 2,482.20

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Solution

The fourth proportional to 3,210.84, 4,811.22 and 2,482.20 is: 3,719.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,210.84 : 4,811.22 = 2,482.20 : x
  2. Step 2: Convert to fraction form
    3,210.84/4,811.22 = 2,482.20/x
  3. Step 3: Cross multiply
    3,210.84x = 4,811.22 × 2,482.20
  4. Step 4: Simplify right side
    3,210.84x = 11,942,410.28
  5. Step 5: Solve for x
    x = 11,942,410.28/3,210.84
  6. Step 6: Final answer
    x = 3,719.40

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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.