Home / 3,251.53-4,485.36-2,688.67

Finding the Fourth Proportional to 3,251.53, 4,485.36 and 2,688.67

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Solution

The fourth proportional to 3,251.53, 4,485.36 and 2,688.67 is: 3,708.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,251.53 : 4,485.36 = 2,688.67 : x
  2. Step 2: Convert to fraction form
    3,251.53/4,485.36 = 2,688.67/x
  3. Step 3: Cross multiply
    3,251.53x = 4,485.36 × 2,688.67
  4. Step 4: Simplify right side
    3,251.53x = 12,059,652.87
  5. Step 5: Solve for x
    x = 12,059,652.87/3,251.53
  6. Step 6: Final answer
    x = 3,708.92

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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.