Home / 6,916.32-10,380.96-3,221.10

Finding the Fourth Proportional to 6,916.32, 10,380.96 and 3,221.10

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Solution

The fourth proportional to 6,916.32, 10,380.96 and 3,221.10 is: 4,834.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,916.32 : 10,380.96 = 3,221.10 : x
  2. Step 2: Convert to fraction form
    6,916.32/10,380.96 = 3,221.10/x
  3. Step 3: Cross multiply
    6,916.32x = 10,380.96 × 3,221.10
  4. Step 4: Simplify right side
    6,916.32x = 33,438,110.26
  5. Step 5: Solve for x
    x = 33,438,110.26/6,916.32
  6. Step 6: Final answer
    x = 4,834.67

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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.