Home / 1,626.80-2,439.28-1,107.50

Finding the Fourth Proportional to 1,626.80, 2,439.28 and 1,107.50

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Solution

The fourth proportional to 1,626.80, 2,439.28 and 1,107.50 is: 1,660.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,626.80 : 2,439.28 = 1,107.50 : x
  2. Step 2: Convert to fraction form
    1,626.80/2,439.28 = 1,107.50/x
  3. Step 3: Cross multiply
    1,626.80x = 2,439.28 × 1,107.50
  4. Step 4: Simplify right side
    1,626.80x = 2,701,502.60
  5. Step 5: Solve for x
    x = 2,701,502.60/1,626.80
  6. Step 6: Final answer
    x = 1,660.62

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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.