Home / 2,239.60-3,355.76-1,372.08

Finding the Fourth Proportional to 2,239.60, 3,355.76 and 1,372.08

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Solution

The fourth proportional to 2,239.60, 3,355.76 and 1,372.08 is: 2,055.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,239.60 : 3,355.76 = 1,372.08 : x
  2. Step 2: Convert to fraction form
    2,239.60/3,355.76 = 1,372.08/x
  3. Step 3: Cross multiply
    2,239.60x = 3,355.76 × 1,372.08
  4. Step 4: Simplify right side
    2,239.60x = 4,604,371.18
  5. Step 5: Solve for x
    x = 4,604,371.18/2,239.60
  6. Step 6: Final answer
    x = 2,055.89

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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.