Home / 5,285.38-7,925.10-2,647

Finding the Fourth Proportional to 5,285.38, 7,925.10 and 2,647

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Solution

The fourth proportional to 5,285.38, 7,925.10 and 2,647 is: 3,969.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,285.38 : 7,925.10 = 2,647 : x
  2. Step 2: Convert to fraction form
    5,285.38/7,925.10 = 2,647/x
  3. Step 3: Cross multiply
    5,285.38x = 7,925.10 × 2,647
  4. Step 4: Simplify right side
    5,285.38x = 20,977,739.70
  5. Step 5: Solve for x
    x = 20,977,739.70/5,285.38
  6. Step 6: Final answer
    x = 3,969.01

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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.