Home / 5,517.36-8,276.14-1,621.76

Finding the Fourth Proportional to 5,517.36, 8,276.14 and 1,621.76

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Solution

The fourth proportional to 5,517.36, 8,276.14 and 1,621.76 is: 2,432.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,517.36 : 8,276.14 = 1,621.76 : x
  2. Step 2: Convert to fraction form
    5,517.36/8,276.14 = 1,621.76/x
  3. Step 3: Cross multiply
    5,517.36x = 8,276.14 × 1,621.76
  4. Step 4: Simplify right side
    5,517.36x = 13,421,912.81
  5. Step 5: Solve for x
    x = 13,421,912.81/5,517.36
  6. Step 6: Final answer
    x = 2,432.67

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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.