Home / 2,649.21-3,673.35-2,561.39

Finding the Fourth Proportional to 2,649.21, 3,673.35 and 2,561.39

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Solution

The fourth proportional to 2,649.21, 3,673.35 and 2,561.39 is: 3,551.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,649.21 : 3,673.35 = 2,561.39 : x
  2. Step 2: Convert to fraction form
    2,649.21/3,673.35 = 2,561.39/x
  3. Step 3: Cross multiply
    2,649.21x = 3,673.35 × 2,561.39
  4. Step 4: Simplify right side
    2,649.21x = 9,408,863.59
  5. Step 5: Solve for x
    x = 9,408,863.59/2,649.21
  6. Step 6: Final answer
    x = 3,551.57

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.