Home / 4,272.10-6,408.15-1,806.28

Finding the Fourth Proportional to 4,272.10, 6,408.15 and 1,806.28

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Solution

The fourth proportional to 4,272.10, 6,408.15 and 1,806.28 is: 2,709.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,272.10 : 6,408.15 = 1,806.28 : x
  2. Step 2: Convert to fraction form
    4,272.10/6,408.15 = 1,806.28/x
  3. Step 3: Cross multiply
    4,272.10x = 6,408.15 × 1,806.28
  4. Step 4: Simplify right side
    4,272.10x = 11,574,913.18
  5. Step 5: Solve for x
    x = 11,574,913.18/4,272.10
  6. Step 6: Final answer
    x = 2,709.42

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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.