Home / 5,005.68-7,494.84-3,620.40

Finding the Fourth Proportional to 5,005.68, 7,494.84 and 3,620.40

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Solution

The fourth proportional to 5,005.68, 7,494.84 and 3,620.40 is: 5,420.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,005.68 : 7,494.84 = 3,620.40 : x
  2. Step 2: Convert to fraction form
    5,005.68/7,494.84 = 3,620.40/x
  3. Step 3: Cross multiply
    5,005.68x = 7,494.84 × 3,620.40
  4. Step 4: Simplify right side
    5,005.68x = 27,134,318.74
  5. Step 5: Solve for x
    x = 27,134,318.74/5,005.68
  6. Step 6: Final answer
    x = 5,420.71

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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.