Home / 5,402.20-7,455.76-3,164.56

Finding the Fourth Proportional to 5,402.20, 7,455.76 and 3,164.56

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Solution

The fourth proportional to 5,402.20, 7,455.76 and 3,164.56 is: 4,367.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,402.20 : 7,455.76 = 3,164.56 : x
  2. Step 2: Convert to fraction form
    5,402.20/7,455.76 = 3,164.56/x
  3. Step 3: Cross multiply
    5,402.20x = 7,455.76 × 3,164.56
  4. Step 4: Simplify right side
    5,402.20x = 23,594,199.87
  5. Step 5: Solve for x
    x = 23,594,199.87/5,402.20
  6. Step 6: Final answer
    x = 4,367.52

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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.