Home / 5,426.60-7,489.70-3,188.68

Finding the Fourth Proportional to 5,426.60, 7,489.70 and 3,188.68

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Solution

The fourth proportional to 5,426.60, 7,489.70 and 3,188.68 is: 4,400.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,426.60 : 7,489.70 = 3,188.68 : x
  2. Step 2: Convert to fraction form
    5,426.60/7,489.70 = 3,188.68/x
  3. Step 3: Cross multiply
    5,426.60x = 7,489.70 × 3,188.68
  4. Step 4: Simplify right side
    5,426.60x = 23,882,256.60
  5. Step 5: Solve for x
    x = 23,882,256.60/5,426.60
  6. Step 6: Final answer
    x = 4,400.96

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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.