Home / 3,408.08-4,706.16-2,151.40

Finding the Fourth Proportional to 3,408.08, 4,706.16 and 2,151.40

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Solution

The fourth proportional to 3,408.08, 4,706.16 and 2,151.40 is: 2,970.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,408.08 : 4,706.16 = 2,151.40 : x
  2. Step 2: Convert to fraction form
    3,408.08/4,706.16 = 2,151.40/x
  3. Step 3: Cross multiply
    3,408.08x = 4,706.16 × 2,151.40
  4. Step 4: Simplify right side
    3,408.08x = 10,124,832.62
  5. Step 5: Solve for x
    x = 10,124,832.62/3,408.08
  6. Step 6: Final answer
    x = 2,970.83

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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.