Home / 4,272.32-6,408.96-1,807.76

Finding the Fourth Proportional to 4,272.32, 6,408.96 and 1,807.76

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Solution

The fourth proportional to 4,272.32, 6,408.96 and 1,807.76 is: 2,711.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,272.32 : 6,408.96 = 1,807.76 : x
  2. Step 2: Convert to fraction form
    4,272.32/6,408.96 = 1,807.76/x
  3. Step 3: Cross multiply
    4,272.32x = 6,408.96 × 1,807.76
  4. Step 4: Simplify right side
    4,272.32x = 11,585,861.53
  5. Step 5: Solve for x
    x = 11,585,861.53/4,272.32
  6. Step 6: Final answer
    x = 2,711.84

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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.