Home / 1,903.78-2,626.40-1,107.04

Finding the Fourth Proportional to 1,903.78, 2,626.40 and 1,107.04

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Solution

The fourth proportional to 1,903.78, 2,626.40 and 1,107.04 is: 1,527.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,903.78 : 2,626.40 = 1,107.04 : x
  2. Step 2: Convert to fraction form
    1,903.78/2,626.40 = 1,107.04/x
  3. Step 3: Cross multiply
    1,903.78x = 2,626.40 × 1,107.04
  4. Step 4: Simplify right side
    1,903.78x = 2,907,529.86
  5. Step 5: Solve for x
    x = 2,907,529.86/1,903.78
  6. Step 6: Final answer
    x = 1,527.24

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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.