Home / 3,206.88-4,421.52-2,649.60

Finding the Fourth Proportional to 3,206.88, 4,421.52 and 2,649.60

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Solution

The fourth proportional to 3,206.88, 4,421.52 and 2,649.60 is: 3,653.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,206.88 : 4,421.52 = 2,649.60 : x
  2. Step 2: Convert to fraction form
    3,206.88/4,421.52 = 2,649.60/x
  3. Step 3: Cross multiply
    3,206.88x = 4,421.52 × 2,649.60
  4. Step 4: Simplify right side
    3,206.88x = 11,715,259.39
  5. Step 5: Solve for x
    x = 11,715,259.39/3,206.88
  6. Step 6: Final answer
    x = 3,653.16

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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.