Home / 4,920.28-7,327.67-4,892.20

Finding the Fourth Proportional to 4,920.28, 7,327.67 and 4,892.20

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Solution

The fourth proportional to 4,920.28, 7,327.67 and 4,892.20 is: 7,285.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,920.28 : 7,327.67 = 4,892.20 : x
  2. Step 2: Convert to fraction form
    4,920.28/7,327.67 = 4,892.20/x
  3. Step 3: Cross multiply
    4,920.28x = 7,327.67 × 4,892.20
  4. Step 4: Simplify right side
    4,920.28x = 35,848,427.17
  5. Step 5: Solve for x
    x = 35,848,427.17/4,920.28
  6. Step 6: Final answer
    x = 7,285.85

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.