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Finding the Fourth Proportional to 3,206.50, 4,809.94 and 898.18

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Solution

The fourth proportional to 3,206.50, 4,809.94 and 898.18 is: 1,347.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,206.50 : 4,809.94 = 898.18 : x
  2. Step 2: Convert to fraction form
    3,206.50/4,809.94 = 898.18/x
  3. Step 3: Cross multiply
    3,206.50x = 4,809.94 × 898.18
  4. Step 4: Simplify right side
    3,206.50x = 4,320,191.91
  5. Step 5: Solve for x
    x = 4,320,191.91/3,206.50
  6. Step 6: Final answer
    x = 1,347.32

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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.