Home / 1,411.92-2,102.94-1,337.80

Finding the Fourth Proportional to 1,411.92, 2,102.94 and 1,337.80

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Solution

The fourth proportional to 1,411.92, 2,102.94 and 1,337.80 is: 1,992.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,411.92 : 2,102.94 = 1,337.80 : x
  2. Step 2: Convert to fraction form
    1,411.92/2,102.94 = 1,337.80/x
  3. Step 3: Cross multiply
    1,411.92x = 2,102.94 × 1,337.80
  4. Step 4: Simplify right side
    1,411.92x = 2,813,313.13
  5. Step 5: Solve for x
    x = 2,813,313.13/1,411.92
  6. Step 6: Final answer
    x = 1,992.54

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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.