Home / 3,898.38-5,847.84-1,125.30

Finding the Fourth Proportional to 3,898.38, 5,847.84 and 1,125.30

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Solution

The fourth proportional to 3,898.38, 5,847.84 and 1,125.30 is: 1,688.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,898.38 : 5,847.84 = 1,125.30 : x
  2. Step 2: Convert to fraction form
    3,898.38/5,847.84 = 1,125.30/x
  3. Step 3: Cross multiply
    3,898.38x = 5,847.84 × 1,125.30
  4. Step 4: Simplify right side
    3,898.38x = 6,580,574.35
  5. Step 5: Solve for x
    x = 6,580,574.35/3,898.38
  6. Step 6: Final answer
    x = 1,688.03

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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.