Home / 3,309.12-4,567.68-2,958.80

Finding the Fourth Proportional to 3,309.12, 4,567.68 and 2,958.80

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Solution

The fourth proportional to 3,309.12, 4,567.68 and 2,958.80 is: 4,084.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,309.12 : 4,567.68 = 2,958.80 : x
  2. Step 2: Convert to fraction form
    3,309.12/4,567.68 = 2,958.80/x
  3. Step 3: Cross multiply
    3,309.12x = 4,567.68 × 2,958.80
  4. Step 4: Simplify right side
    3,309.12x = 13,514,851.58
  5. Step 5: Solve for x
    x = 13,514,851.58/3,309.12
  6. Step 6: Final answer
    x = 4,084.12

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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.