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Finding the Fourth Proportional to 3,210.59, 4,816.67 and 902.09

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Solution

The fourth proportional to 3,210.59, 4,816.67 and 902.09 is: 1,353.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,210.59 : 4,816.67 = 902.09 : x
  2. Step 2: Convert to fraction form
    3,210.59/4,816.67 = 902.09/x
  3. Step 3: Cross multiply
    3,210.59x = 4,816.67 × 902.09
  4. Step 4: Simplify right side
    3,210.59x = 4,345,041.25
  5. Step 5: Solve for x
    x = 4,345,041.25/3,210.59
  6. Step 6: Final answer
    x = 1,353.35

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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.