Home / 6,464.45-8,920.41-3,631.67

Finding the Fourth Proportional to 6,464.45, 8,920.41 and 3,631.67

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Solution

The fourth proportional to 6,464.45, 8,920.41 and 3,631.67 is: 5,011.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,464.45 : 8,920.41 = 3,631.67 : x
  2. Step 2: Convert to fraction form
    6,464.45/8,920.41 = 3,631.67/x
  3. Step 3: Cross multiply
    6,464.45x = 8,920.41 × 3,631.67
  4. Step 4: Simplify right side
    6,464.45x = 32,395,922.62
  5. Step 5: Solve for x
    x = 32,395,922.62/6,464.45
  6. Step 6: Final answer
    x = 5,011.40

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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.