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Finding the Fourth Proportional to 3,298.75, 4,550.62 and 1,972.10

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Solution

The fourth proportional to 3,298.75, 4,550.62 and 1,972.10 is: 2,720.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,298.75 : 4,550.62 = 1,972.10 : x
  2. Step 2: Convert to fraction form
    3,298.75/4,550.62 = 1,972.10/x
  3. Step 3: Cross multiply
    3,298.75x = 4,550.62 × 1,972.10
  4. Step 4: Simplify right side
    3,298.75x = 8,974,267.84
  5. Step 5: Solve for x
    x = 8,974,267.84/3,298.75
  6. Step 6: Final answer
    x = 2,720.51

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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.