Home / 2,178.92-3,004.26-1,898.12

Finding the Fourth Proportional to 2,178.92, 3,004.26 and 1,898.12

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Solution

The fourth proportional to 2,178.92, 3,004.26 and 1,898.12 is: 2,617.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,178.92 : 3,004.26 = 1,898.12 : x
  2. Step 2: Convert to fraction form
    2,178.92/3,004.26 = 1,898.12/x
  3. Step 3: Cross multiply
    2,178.92x = 3,004.26 × 1,898.12
  4. Step 4: Simplify right side
    2,178.92x = 5,702,445.99
  5. Step 5: Solve for x
    x = 5,702,445.99/2,178.92
  6. Step 6: Final answer
    x = 2,617.10

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.