Home / 3,156.10-4,354.77-2,408.74

Finding the Fourth Proportional to 3,156.10, 4,354.77 and 2,408.74

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Solution

The fourth proportional to 3,156.10, 4,354.77 and 2,408.74 is: 3,323.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,156.10 : 4,354.77 = 2,408.74 : x
  2. Step 2: Convert to fraction form
    3,156.10/4,354.77 = 2,408.74/x
  3. Step 3: Cross multiply
    3,156.10x = 4,354.77 × 2,408.74
  4. Step 4: Simplify right side
    3,156.10x = 10,489,508.69
  5. Step 5: Solve for x
    x = 10,489,508.69/3,156.10
  6. Step 6: Final answer
    x = 3,323.57

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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.