Home / 3,899.58-5,382.95-2,408.10

Finding the Fourth Proportional to 3,899.58, 5,382.95 and 2,408.10

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Solution

The fourth proportional to 3,899.58, 5,382.95 and 2,408.10 is: 3,324.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,899.58 : 5,382.95 = 2,408.10 : x
  2. Step 2: Convert to fraction form
    3,899.58/5,382.95 = 2,408.10/x
  3. Step 3: Cross multiply
    3,899.58x = 5,382.95 × 2,408.10
  4. Step 4: Simplify right side
    3,899.58x = 12,962,681.90
  5. Step 5: Solve for x
    x = 12,962,681.90/3,899.58
  6. Step 6: Final answer
    x = 3,324.12

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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.