Home / 5,426.20-8,123.46-4,907.38

Finding the Fourth Proportional to 5,426.20, 8,123.46 and 4,907.38

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Solution

The fourth proportional to 5,426.20, 8,123.46 and 4,907.38 is: 7,346.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,426.20 : 8,123.46 = 4,907.38 : x
  2. Step 2: Convert to fraction form
    5,426.20/8,123.46 = 4,907.38/x
  3. Step 3: Cross multiply
    5,426.20x = 8,123.46 × 4,907.38
  4. Step 4: Simplify right side
    5,426.20x = 39,864,905.13
  5. Step 5: Solve for x
    x = 39,864,905.13/5,426.20
  6. Step 6: Final answer
    x = 7,346.74

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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.