Home / 3,548.09-5,322.80-1,990.25

Finding the Fourth Proportional to 3,548.09, 5,322.80 and 1,990.25

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Solution

The fourth proportional to 3,548.09, 5,322.80 and 1,990.25 is: 2,985.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,548.09 : 5,322.80 = 1,990.25 : x
  2. Step 2: Convert to fraction form
    3,548.09/5,322.80 = 1,990.25/x
  3. Step 3: Cross multiply
    3,548.09x = 5,322.80 × 1,990.25
  4. Step 4: Simplify right side
    3,548.09x = 10,593,720.98
  5. Step 5: Solve for x
    x = 10,593,720.98/3,548.09
  6. Step 6: Final answer
    x = 2,985.76

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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.