Home / 3,408.47-5,106.18-2,856.71

Finding the Fourth Proportional to 3,408.47, 5,106.18 and 2,856.71

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Solution

The fourth proportional to 3,408.47, 5,106.18 and 2,856.71 is: 4,279.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,408.47 : 5,106.18 = 2,856.71 : x
  2. Step 2: Convert to fraction form
    3,408.47/5,106.18 = 2,856.71/x
  3. Step 3: Cross multiply
    3,408.47x = 5,106.18 × 2,856.71
  4. Step 4: Simplify right side
    3,408.47x = 14,586,849.94
  5. Step 5: Solve for x
    x = 14,586,849.94/3,408.47
  6. Step 6: Final answer
    x = 4,279.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.