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Finding the Fourth Proportional to 3,240.09, 4,859.98 and 900.08

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Solution

The fourth proportional to 3,240.09, 4,859.98 and 900.08 is: 1,350.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,240.09 : 4,859.98 = 900.08 : x
  2. Step 2: Convert to fraction form
    3,240.09/4,859.98 = 900.08/x
  3. Step 3: Cross multiply
    3,240.09x = 4,859.98 × 900.08
  4. Step 4: Simplify right side
    3,240.09x = 4,374,362.47
  5. Step 5: Solve for x
    x = 4,374,362.47/3,240.09
  6. Step 6: Final answer
    x = 1,350.07

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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.