Home / 2,429.60-3,644.40-1,133.60

Finding the Fourth Proportional to 2,429.60, 3,644.40 and 1,133.60

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Solution

The fourth proportional to 2,429.60, 3,644.40 and 1,133.60 is: 1,700.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,429.60 : 3,644.40 = 1,133.60 : x
  2. Step 2: Convert to fraction form
    2,429.60/3,644.40 = 1,133.60/x
  3. Step 3: Cross multiply
    2,429.60x = 3,644.40 × 1,133.60
  4. Step 4: Simplify right side
    2,429.60x = 4,131,291.84
  5. Step 5: Solve for x
    x = 4,131,291.84/2,429.60
  6. Step 6: Final answer
    x = 1,700.40

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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.