Home / 3,530.80-4,872.60-1,958.80

Finding the Fourth Proportional to 3,530.80, 4,872.60 and 1,958.80

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Solution

The fourth proportional to 3,530.80, 4,872.60 and 1,958.80 is: 2,703.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,530.80 : 4,872.60 = 1,958.80 : x
  2. Step 2: Convert to fraction form
    3,530.80/4,872.60 = 1,958.80/x
  3. Step 3: Cross multiply
    3,530.80x = 4,872.60 × 1,958.80
  4. Step 4: Simplify right side
    3,530.80x = 9,544,448.88
  5. Step 5: Solve for x
    x = 9,544,448.88/3,530.80
  6. Step 6: Final answer
    x = 2,703.20

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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.