Home / 1,228.80-1,835.52-1,223.04

Finding the Fourth Proportional to 1,228.80, 1,835.52 and 1,223.04

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Solution

The fourth proportional to 1,228.80, 1,835.52 and 1,223.04 is: 1,826.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,228.80 : 1,835.52 = 1,223.04 : x
  2. Step 2: Convert to fraction form
    1,228.80/1,835.52 = 1,223.04/x
  3. Step 3: Cross multiply
    1,228.80x = 1,835.52 × 1,223.04
  4. Step 4: Simplify right side
    1,228.80x = 2,244,914.38
  5. Step 5: Solve for x
    x = 2,244,914.38/1,228.80
  6. Step 6: Final answer
    x = 1,826.92

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1.5x scale

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.