Home / 2,448.40-3,667.20-1,292.80

Finding the Fourth Proportional to 2,448.40, 3,667.20 and 1,292.80

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Solution

The fourth proportional to 2,448.40, 3,667.20 and 1,292.80 is: 1,936.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,448.40 : 3,667.20 = 1,292.80 : x
  2. Step 2: Convert to fraction form
    2,448.40/3,667.20 = 1,292.80/x
  3. Step 3: Cross multiply
    2,448.40x = 3,667.20 × 1,292.80
  4. Step 4: Simplify right side
    2,448.40x = 4,740,956.16
  5. Step 5: Solve for x
    x = 4,740,956.16/2,448.40
  6. Step 6: Final answer
    x = 1,936.35

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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.