Home / 4,892.20-7,319.10-4,431.40

Finding the Fourth Proportional to 4,892.20, 7,319.10 and 4,431.40

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Solution

The fourth proportional to 4,892.20, 7,319.10 and 4,431.40 is: 6,629.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,892.20 : 7,319.10 = 4,431.40 : x
  2. Step 2: Convert to fraction form
    4,892.20/7,319.10 = 4,431.40/x
  3. Step 3: Cross multiply
    4,892.20x = 7,319.10 × 4,431.40
  4. Step 4: Simplify right side
    4,892.20x = 32,433,859.74
  5. Step 5: Solve for x
    x = 32,433,859.74/4,892.20
  6. Step 6: Final answer
    x = 6,629.71

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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.