Home / 7,652.39-11,479.73-2,720.84

Finding the Fourth Proportional to 7,652.39, 11,479.73 and 2,720.84

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Solution

The fourth proportional to 7,652.39, 11,479.73 and 2,720.84 is: 4,081.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,652.39 : 11,479.73 = 2,720.84 : x
  2. Step 2: Convert to fraction form
    7,652.39/11,479.73 = 2,720.84/x
  3. Step 3: Cross multiply
    7,652.39x = 11,479.73 × 2,720.84
  4. Step 4: Simplify right side
    7,652.39x = 31,234,523.67
  5. Step 5: Solve for x
    x = 31,234,523.67/7,652.39
  6. Step 6: Final answer
    x = 4,081.67

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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.